Solid Carbide Brochure - Ekstrom CarlsonSpecial solid carbide tools from the KOMET GROUP ... † Original re–coating † High–precision tool refurbishing † Technical support

Custom Solid Carbide ToolingSpecial drills and end mills

2

Special solid carbide tools from the KOMET GROUPA global leader for highly engineered metalworking tools and tooling systems for hole making, the KOMET GROUP offers you a program of special solid carbide tools manufactured to meet your requirements.

Our special solid carbide tools program is also backed by the tool refurbishment services offered by our licensed KOMET SERVICE® Partners.

The TOOLlife tool program gives you access to a comprehensive range of standard solid carbide tools for drilling, milling, threading, reaming, turning and countersinking.

Your PLUS: • Single– and multi–step drills designed to your requirements• Customized end mills and milling cutters for your applications• Complete range of standard solid carbide tools• Backed by the engineering knowledge and know–how of the KOMET GROUP• Supported by the KOMET SERVICE® network of licensed partners for tool refurbishment

3

KOMET SERVICE® – your advantage for effi cient productionKOMET SERVICE® offers customers additional service benefi ts that help ensure a consistent, optimal tool quality in order to maximize process reliability in production.

Their services include:• Professional re–grinding of KOMET GROUP tools and tools of all brands• Original re–coating• High–precision tool refurbishing• Technical support

The highest precision and accuracy of the refurbished tools is achieved through the use of state–of–the–art CNC grinding centers and computerized measuring equipment.

The KOMET SERVICE® Partners are your competent, local contacts for professional tool processing and offer everything from a single source – fast, easy and complete.

Visit www.ekstromcarlson.com for more information.

4

The KomPass TOOLlife tool program encompasses a wide selection of tools from the KOMET GROUP product portfolio which can be refurbished by a local KOMET SERVICE® Partner, including: • Drilling• Milling• Threading• Reaming• Turning, and• Countersinking tools

These proven tools offer a long tool life and high return on investment as they can be professionally refurbished to achieve up to 100% of the performance of a new tool.

The TOOLlife concept combines the following advantages: • High–quality, long–lasting products• Technical support from the KOMET SERVICE® Partners and KOMET outside sales representatives• A catalog with recommended cutting parameters and applications• The service portfolio of the KOMET SERVICE® Partner network

Visit www.ekstromcarlson.com to learn more or to download the TOOLlife catalog.

KomPass TOOLlife tool programStandard solid carbide tools from the KOMET product portfolio

5

Index

Page

KOMET KUB® DrillmaxSpecial Drill

6

KOMET KUB® DrillmaxSpecial 1-Step Drill

8

KOMET KUB® DrillmaxSpecial 2–Step Drill

10

JEL® DRILLCUTSpecial Drill

12

JEL® DRILLCUT Special 1-Step Drill

14

JEL® DRILLCUT Special 2–Step Drill

16

JEL® Special End Mills

18

Cutting Data 20 – 23

Milling Technical Notes 24 – 25

Drilling / Troubleshooting Guide 26 – 31

Diameter Shank Drill dimensions

Ø D Ø d x l

2 x D 3 x D 4 x D 5 x D 6 x D 7 x D 8 x D 9 x D 10 x D 11 x D 12 x D

Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L

3.0 – 6.0 6 x 36 12 57 18 66 24 69 30 82 36 85 42 87 48 95 54 99 60 105 66 111 72 117

6.1 – 7.0 8 x 36 14 62 21 79 28 76 35 91 42 87 49 97 56 114 63 111 70 118 77 124 84 132

7.1 – 8.0 8 x 36 16 63 24 79 32 85 40 91 48 97 56 103 64 114 72 119 80 127 88 135 96 143

8.1 – 9.0 10 x 40 18 71 27 89 36 89 45 103 54 107 63 116 72 142 81 134 90 143 99 152 108 161

9.1 – 10.0 10 x 40 20 73 30 89 40 93 50 103 60 113 70 123 80 142 90 143 100 153 110 163 120 173

10.1 – 11.0 12 x 45 22 82 33 102 44 104 55 118 66 126 77 137 88 162 99 159 110 170 121 181 132 192

11.1 – 12.0 12 x 45 24 84 36 102 48 108 60 118 72 132 84 144 96 162 108 168 120 180 132 192 144 204

12.1 – 13.0 14 x 45 26 88 39 107 52 114 65 124 78 140 91 153 104 178 117 179 130 192 143 205 156 218

13.1 – 14.0 14 x 45 28 90 42 107 56 118 70 124 84 146 98 160 112 178 126 188 140 202 154 216 168 230

14.1 – 15.0 16 x 48 30 94 45 115 60 128 75 133 90 158 105 173 120 196 135 199 150 218 165 233 180 248

15.1 – 16.0 16 x 48 32 100 48 116 64 132 80 148 96 164 112 180 128 196 144 212 160 228 176 244 192 260

16.1 – 17.0 18 x 48 34 104 51 121 68 138 85 155 102 172 119 189 136 206 153 223 170 240 187 257 204 274

17.1 – 18.0 18 x 48 36 106 54 124 72 142 90 160 108 178 126 196 144 214 162 232 180 250 198 268 216 286

18.1 – 19.0 20 x 50 38 112 57 131 76 150 95 169 114 188 133 207 152 226 171 245 190 264 209 283 228 302

19.1 – 20.0 20 x 50 40 114 60 143 80 154 100 174 120 194 140 214 160 234 180 254 200 274 220 294 240 314

6

KOMET KUB® Drillmax Ø 3.0 – 20 mm(Ø 0.118” – 0.787”)Special Drill

D

N

L

l

d

� with or without coolant thru� with or without coating� tolerance D1 = m7; d = h6� specify required dimensions in inch or metric

*without coolant thru

Note:Inch-sized tools also available within the diameter range 0.118” – 0.787”.*Without coolant only available for 3xD.

For recommended cutting speeds and feeds, please refer to page 20.

Dimension ranges for reference only; all tools made to specifi cations.

Tool Dimension Tool Tolerance Workpiece Tolerance

D = Diameter

d = Shank diameter

L = Overall length

N = Drilling depth

l = Shank length

Please sketch workpiece below:

Workpiece and Production Volume

Contact Information

Structural steel, good machinability

Hardened steel

Tool steel

Stainless steel

Other

Grey cast iron, malleable

Nodular cast iron

Aluminum (<10% Si)

Aluminum (>10% Si)

Copper, bronze

Material code Tensile strength (N/mm2) Hardness (HRc, HB, HV,...)

Through spindle

HA

HE

HB

Flood

Coolant Supply

Straight Shank DIN 6535

Workpiece Material

Company Name:

Contact Name:

Address:

Detail:

Quantity of tools:

Volume of production: pcs/year

Date:

Phone:

Fax:

Email:

7

Inquiry FormContact [email protected], fax 815-316-8120, or call 815-394-1744.

Tool Information - specify inch or metric

D

N

L

l

d


Short Long Extra Long

Ø Dmin

Ø d x l D1max

L L1max

L2max

D1max

L L1max

L2max

D1max

L L1max

L2max

3.0 6 x 36 6 62 12 24 6 74 18 30 – – – –

4.5 8 x 36 8 69 16 28 8 80 24 40 – – – –

5.5 10 x 40 10 80 20 38 10 90 30 47 – – – –

6.5 12 x 45 12 92 24 42 12 102 36 54 – – – –

7.0 14 x 45 14 99 28 51 14 115 42 67 14 130 56 81

8.0 16 x 48 16 109 32 59 16 118 48 75 16 145 64 93

9.0 18 x 48 18 120 36 68 18 135 54 85 18 155 72 104

10.0 20 x 50 20 128 40 75 20 148 60 95 20 162 78 111

8

KOMET KUB® DrillmaxSpecial 1-Step Drill

D14

0°

30°-90°

D1

L2

L

lL1

d


� with or without coolant thru� with or without coating� tolerance D1 = m7; d = h6� specify required dimensions in inch or metric

Ø 3.0 – 20 mm(Ø 0.118” – 0.787”)



not a cutting edge



D = Diameter

D2 = Diameter

d = Shank diameter

L = Overall length

L1 = Drilling depth


L2 = Drilling depth

l = Shank length

V1 = Chamfer angle

V = angle is dependant on material being machined



Contact Information


Hardened steel

Tool steel

Stainless steel

Other


Nodular cast iron

Aluminum (<10% Si)

Aluminum (>10% Si)

Copper, bronze


Through spindle

HA

HE

HB

Flood

Coolant Supply


Workpiece Material

Company Name:

Contact Name:

Address:

Detail:

Quantity of tools:


Date:

Phone:

Fax:

Email:

9



D V

V1

D1

L2

L

lL1

d



Ø Dmin

Ø d x l D1 D2max

L L1max

L2max

L3max

D1 D2max

L L 1max

L2max

L3max

D1 D2max

L L1max

L2max

L3max

4.5 8 x 36

Mus

t be

larg

er th

an D

8 75 12 19 36

Mus

t be

larg

er th

an D

8 82 18 25 42M

ust b

e la

rger

than

D– – – – –

5.5 10 x 40 10 85 16 25 43 10 95 24 33 51 – – – – –

6.5 12 x 45 12 100 20 31 51 12 110 30 41 61 – – – – –

7.0 14 x 45 14 110 24 37 62 14 122 36 49 74 – – – – –

8.0 16 x 48 16 120 28 43 68 16 134 42 57 82 16 148 56 71 96

9.0 18 x 48 18 130 32 49 77 18 146 48 65 93 18 162 64 81 109

10.0 20 x 50 20 140 36 55 86 21 158 54 73 104 – – – – –

12.0 25 x 50 25 160 43 64 100 – – – – – – – – – –

10

KOMET KUB® DrillmaxSpecial 2–Step Drill

DD1D2

L3

L

lL1

L2

d140°

30°-90°

30°-90°

� with coolant thru� with or without coating� tolerance D1 = m7; d = h6� specify required dimensions in inch or metric

Ø 4.5 – 25 mm(Ø 0.177” – 0.984”)

not a cutting edge

Note:Inch-sized tools also available within the diameter range 0.177” – 0.984”.




D = Diameter

D1 = Diameter

D2 = Diameter

d = Shank diameter

L = Overall length

L1 = Drilling depth


L2 = Drilling depth

L3 = Drilling depth

l = Shank length

V1 = Chamfer angle

V2 = Chamfer angle




Contact Information


Hardened steel

Tool steel

Stainless steel

Other


Nodular cast iron

Aluminum (<10% Si)

Aluminum (>10% Si)

Copper, bronze


Through spindle

HA

HE

HB

Flood

Coolant Supply


Workpiece Material

Company Name:

Contact Name:

Address:

Detail:

Quantity of tools:


Date:

Phone:

Fax:

Email:

11


D V

V2

V1

D1D2

L3

L

lL1

L2

d



Ø D Ø d x l

2 x D 3 x D 4 x D 5 x D 6 x D 7 x D 8 x D 9 x D 10 x D 11 x D 12 x D

Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L Nmax

L

3.0 – 6.0 6 x 36 12 64 18 66 24 76 30 82 36 88 42 94 48 95 54 106 60 112 66 118 72 124

6.1 – 7.0 8 x 36 14 70 21 79 28 84 35 91 42 98 49 105 56 114 63 119 70 126 77 133 84 140

7.1 – 8.0 8 x 36 16 73 24 79 32 89 40 91 48 105 56 113 64 114 72 129 80 137 88 145 96 153

8.1 – 9.0 10 x 40 18 80 27 89 36 98 45 103 54 116 63 125 72 142 81 143 90 152 99 161 108 170

9.1 – 10.0 10 x 40 20 83 30 89 40 103 50 103 60 123 70 133 80 142 90 153 100 163 110 173 120 183

10.1 – 11.0 12 x 45 22 91 33 102 44 113 55 118 66 135 77 146 88 162 99 168 110 179 121 190 132 201

11.1 – 12.0 12 x 45 24 95 36 102 48 119 60 118 72 143 84 155 96 162 108 179 120 191 132 203 144 215

12.1 – 13.0 14 x 45 26 98 39 107 52 124 65 124 78 150 91 163 104 178 117 189 130 202 143 215 156 228

13.1 – 14.0 14 x 45 28 101 42 107 56 129 70 124 84 157 98 171 112 178 126 199 140 213 154 227 168 241

14.1 – 15.0 16 x 48 30 107 45 115 60 137 75 133 90 167 105 182 120 203 135 209 150 227 165 242 180 257

15.1 – 16.0 16 x 48 32 109 48 125 64 141 80 157 96 173 112 189 128 205 144 221 160 237 176 253 192 269

16.1 – 17.0 18 x 48 34 112 51 129 68 146 85 163 102 180 119 197 136 214 153 231 170 248 187 265 204 282

17.1 – 18.0 18 x 48 36 115 54 133 72 151 90 169 108 187 126 205 144 223 162 241 180 259 198 277 216 295

18.1 – 19.0 20 x 50 38 120 57 139 76 156 95 177 114 196 133 215 152 234 171 253 190 270 209 291 228 310

19.1 – 20.0 20 x 50 40 123 60 143 80 163 100 183 120 203 140 223 160 243 180 263 200 283 220 303 240 323

12

JEL® DRILLCUTSpecial Drill

D

N

L

l

d




� for aluminum machining and grey cast iron� with or without coolant thru� with or without coating� tolerance D1 = m7; d = h6� specify required dimensions in inch or metric

Ø 3.0 – 20 mm(Ø 0.118” – 0.787”)



D = Diameter

d = Shank diameter

L = Overall length

N = Drilling depth

l = Shank length

13



Contact Information


Hardened steel

Tool steel

Stainless steel

Other


Nodular cast iron

Aluminum (<10% Si)

Aluminum (>10% Si)

Copper, bronze


Through spindle

HA

HE

HB

Flood

Coolant Supply


Workpiece Material

Company Name:

Contact Name:

Address:

Detail:

Quantity of tools:


Date:

Phone:

Fax:

Email:


D

N

L

l

d




Ø Dmin

Ø d x l D1max

L L1max

L2max

D1max

L L1max

L2max

D1max

L L1max

L2max

3.0 6 x 36 6 66 12 28 6 72 18 34 – – – –

4.5 8 x 36 8 75 16 37 8 83 24 45 – – – –

5.5 10 x 40 10 90 20 44 10 100 30 54 – – – –

6.5 12 x 45 12 100 24 50 12 112 36 62 – – – –

7.0 14 x 45 14 104 28 57 14 118 42 71 14 132 56 85

8.0 16 x 48 16 115 32 63 16 131 48 79 16 142 64 95

9.0 18 x 48 18 120 36 70 18 138 54 88 18 156 72 106

10.0 20 x 50 20 130 40 76 20 150 60 96 – – – –

14

JEL® DRILLCUTSpecial 1-Step Drill

DD1

L2

L

lL1

d


140°

30°-90°

� for aluminum machining and grey cast iron� with or without coolant thru� with or without coating� tolerance D1 = m7; d = h6� specify required dimensions in inch or metric

Ø 3.0 – 20 mm(Ø 0.118” – 0.787”)



not a cutting edge



D = Diameter

D2 = Diameter

d = Shank diameter

L = Overall length

L1 = Drilling depth


L2 = Drilling depth

l = Shank length

V1 = Chamfer angle


15



Contact Information


Hardened steel

Tool steel

Stainless steel

Other


Nodular cast iron

Aluminum (<10% Si)

Aluminum (>10% Si)

Copper, bronze


Through spindle

HA

HE

HB

Flood

Coolant Supply


Workpiece Material

Company Name:

Contact Name:

Address:

Detail:

Quantity of tools:


Date:

Phone:

Fax:

Email:


D V

V1

D1

L2

L

lL1

d




Ø Dmin

Ø d x l D1 D2max

L L1max

L2max

L3max

D1 D2max

L L 1max

L2max

L3max

D1 D2max

L L1max

L2max

L3max

4.5 8 x 36

Mus

t be

larg

er th

an D

8 78 12 19 40

Mus

t be

larg

er th

an D

8 84 18 25 46M

ust b

e la

rger

than

D– – – – –

5.5 10 x 40 10 92 16 25 50 10 100 24 33 58 – – – – –

6.5 12 x 45 12 105 20 31 59 12 115 30 41 69 – – – – –

7.0 14 x 45 14 115 24 37 68 14 127 36 49 80 – – – – –

8.0 16 x 48 16 125 28 43 75 16 139 42 57 89 16 153 56 71 103

9.0 18 x 48 18 130 32 49 81 18 146 48 65 92 18 162 64 81 113

10.0 20 x 50 20 142 36 55 90 21 160 54 73 108 – – – – –

12.0 25 x 50 25 160 40 61 100 – – – – – – – – – –

16

JEL® DRILLCUTSpecial 2–Step Drill

DD1D2

L3

L

lL1

L2

d140°

30°-90°

30°-90°



� for aluminum machining and grey cast iron� with coolant thru� with or without coating� tolerance D1 = m7; d = h6� specify required dimensions in inch or metric

Ø 4.5 – 25 mm(Ø 0.177” – 0.984”)

not a cutting edge



D = Diameter

D1 = Diameter

D2 = Diameter

d = Shank diameter

L = Overall length

L1 = Drilling depth


L2 = Drilling depth

L3 = Drilling depth

l = Shank length

V1 = Chamfer angle

V2 = Chamfer angle


17



Contact Information


Hardened steel

Tool steel

Stainless steel

Other


Nodular cast iron

Aluminum (<10% Si)

Aluminum (>10% Si)

Copper, bronze


Through spindle

HA

HE

HB

Flood

Coolant Supply


Workpiece Material

Company Name:

Contact Name:

Address:

Detail:

Quantity of tools:


Date:

Phone:

Fax:

Email:


DD1D2

L3

L

lL1

L2

dV

V2

V1


Diameter Shank Helix angle Cutting edges Type of corner

Ø D Ø d N range

L range

30° 40° 45° 2-4 4-8 8-12 fChamfer

rRadius

3.0 – 6.0 3.0 – 6.0 2 x D – 3 x D 50 – 60 • • • •

6.0 – 10.0 6.0 – 10.0 2 x D – 3 x D 54 – 100 • • • •

from 0.1 to d1/3

from 0.5 to d1/2

10.0 – 12.0 10.0 – 12.0 2 x D – 3 x D 66 – 150 • • • •

12.0 – 14.0 12.0 – 14.0 2 x D – 3 x D 73 – 150 • • • •

14.0 – 16.0 14.0 – 16.0 2 x D – 3 x D 73 – 150 • • • •

16.0 – 18.0 16.0 – 18.0 2 x D – 3 x D 82 – 150 • • • • •

18.0 – 20.0 18.0 – 20.0 2 x D – 3 x D 84 – 150 • • • • •

20.0 – 22.0 20.0 – 22.0 2 x D – 3 x D 92 – 160 • • • • •

22.0 – 24.0 22.0 – 24.0 2 x D – 3 x D 94 – 160 • • • • • •

24.0 – 26.0 24.0 – 25.4 2 x D – 3 x D 100 – 165 • • • • • •

18

JEL®

Special End Mill� without coolant thru� with or without coating� tolerance D1 = e8/h10; d2 = h6� DIN 6535 HA / HB / HE� specify required dimensions in inch or metric

L

N

f

r

dD

Ø 3.0 – 26 mm(Ø 0.118” – 1.024”)


For recommended cutting speeds and feeds, please refer to page 22-23.


Helix angle 30° 40° 45°

# of Cutting edges

Tapered end mill Yes No

End face cutting Yes No

Flat end face Yes No


D = Diameter

d = Shank diameter

L = Overall length

N = Milling depth

f = Corner chamfer

r = Corner radius

19



Contact Information


Hardened steel

Tool steel

Stainless steel

Other


Nodular cast iron

Aluminum (<10% Si)

Aluminum (>10% Si)

Copper, bronze


Through spindle

HA

HE

HB

Flood

Coolant Supply


Workpiece Material

Company Name:

Contact Name:

Address:

Detail:

Quantity of tools:


Date:

Phone:

Fax:

Email:


L

N

f

r

dD


PS

MK

NH

20

(..) = inchFeed f mm/rev (in/rev)

Mat

eria

l gro

up

Stre

ngth

Rm (N

/mm

²)

Har

dnes

s H

B

Material

Material example,material codeAISI / SAE Ø

3.0

– 5

.0(Ø

0.1

18 –

0.1

97)

Ø 5

.1 –

8.0

(0.1

98 –

0.3

15)

Ø 8

.1 –

10.

0(Ø

0.3

16 –

0.3

94)

Ø 1

0.1

– 12

.0(Ø

0.3

95 –

0.4

72)

Ø 1

2.1

– 14

.0(Ø

0.4

73 –

0.5

51)

Ø 1

4.1

– 16

.0(Ø

0.5

52 –

0.6

30)

Ø 1

6.1

– 20

.0(Ø

0.6

31 –

0.7

87)

Cutting speed vc m/min(ft/min)

1.0

�50

0

Unalloyed steelA570.361213A573.81

95-135(310-440)

0.08-0.20(0.003-0.008)

0.15-0.25(0.006-0.010)

0.15-0.30(0.006-0.012)

0.20–0.35(0.008–0.014)

0.25–0.40(0.010–0.016)

0.30–0.45(0.012–0.018)

0.35-0.50(0.014-0.020)

2.0

500–

900

Low alloy steel512010555115

70-100(230-330)

0.06-0.18(0.002-0.007)

0.12-0.22(0.005-0.009)

0.15-0.25(0.006-0.010)

0.18–0.30(0.007–0.012)

0.20–0.35(0.008–0.014)

0.25–0.40(0.010–0.016)

0.30-0.48(0.012-0.019)

2.1

<500 Lead alloy 12L13

70-100(230-330)

0.06-0.18(0.002-0.007)

0.10-0.25(0.004-0.010)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.30-0.45(0.012-0.018)

0.35-0.52(0.014-0.020)

0.35-0.52(0.014-0.020)

3.0

>90

0-12

00 High alloy steelheat resistant structural, heat treated, nitride steels

41401064

70-80(230-260)

0.05-0.15(0.002-0.006)

0.10-0.20(0.004-0.008)

0.12-0.25(0.005-0.010)

0.15–0.30(0.006–0.012)

0.20–0.35(0.008–0.014)

0.25–0.40(0.010–0.016)

0.30-0.48(0.012-0.019)

4.0

>12

00

Tool steels H13H21

45-75(145-245)

0.05-0.13(0.002-0.005)

0.10-0.18(0.004-0.007)

0.12-0.23(0.005-0.009)

0.15-0.28(0.006-0.011)

0.18-0.32(0.007-0.013)

0.20-0.35(0.008-0.014)

0.22-0.38(0.009-0.015)

4.1 HSS

5.0

250 Special alloy:

Inconel, Hastelloy, Nimonic, etc.

Inconel® 718Nimonic® 80A

5.1

400 Titanium,

Titanium alloys AMS R54520

6.0

�60

0 Stainless steel:austenitic300 series

304L316

40-70(130-230)

0.06-0.18(0.002-0.007)

0.12-0.22(0.005-0.009)

0.15-0.25(0.006-0.010)

0.18–0.30(0.007–0.012)

0.20–0.35(0.008–0.014)

0.22–0.40(0.009–0.016)

0.25-0.42(0.010-0.016)

6.1

<90

0

Stainless steels 63025-65

(80-210)0.05-0.10

(0.002-0.004)0.09-0.20

(0.003-0.008)0.11-0.22

(0.004-0.009)0.14–0.25

(0.005–0.010)0.16–0.30

(0.006–0.012)0.20–0.35

(0.008–0.014)0.24-0.40

(0.009-0.016)

7.0

>90

0 Stainless steel:martensitic/ferritic400 series

420403

15-40(50-130)

0.05-0.10(0.002-0.004)

0.06-0.14(0.002-0.005)

0.08-0.18(0.003-0.007)

0.12–0.22(0.005–0.009)

0.14–0.26(0.005–0.010)

0.16–0.30(0.006–0.012)

0.18-0.35(0.007-0.014)

8.0

180

Grey cast iron No 35 BNo 50 B

90-140(295-460)

0.10-0.25(0.004-0.010)

0.15-0.30(0.006-0.012)

0.20-0.40(0.008-0.016)

0.25–0.40(0.010–0.016)

0.25–0.45(0.010–0.018)

0.30–0.50(0.012–0.020)

0.30–0.55(0.012–0.022)

8.1

250

Alloy grey cast iron A436 Type 270-120

(230-390)0.10-0.25

(0.004-0.010)0.15-0.30

(0.006-0.012)0.20-0.40

(0.008-0.016)0.25–0.40

(0.010–0.016)0.25–0.45

(0.010–0.018)0.30–0.50

(0.012–0.020)0.30–0.55

(0.012–0.022)

9.0

�60

0

130 Nodular cast iron

ferritic 60–40–18100-140(330-460)

0.08-0.20(0.003-0.008)

0.15-0.25(0.006-0.010)

0.18-0.30(0.007-0.012)

0.20–0.35(0.008–0.014)

0.25–0.40(0.010–0.016)

0.25–0.45(0.010–0.018)

0.30-0.55(0.012-0.022)

9.1


ferritic / pearlitic 80–55–0680-120

(260-390)0.08-0.14

(0.003-0.005)0.15-0.25

(0.006-0.010).015-0.30

(0.006-0.010)0.20-0.35

(0.008-0.014)0.25-0.40

(0.010-0.016)0.30-0.45

(0.012-0.018)

10.0

>60

0


pearliticMalleable cast iron

100–70–03

70003

70-110(230-360)

0.06-0.18(0.002-0.007)

0.10-0.20(0.004-0.008)

0.14-0.25(0.005-0.010)

0.18–0.30(0.007–0.012)

0.20–0.35(0.008–0.014)

0.25–0.40(0.010–0.016)

0.25-0.45(0.010-0.018)

10.1

200 Alloyed nodular

cast iron A43D260-80

(195-260)0.06-0.18

(0.002-0.007)0.10-0.20

(0.004-0.008)0.14-0.25

(0.005-0.010)0.18–0.30

(0.007–0.012)0.20–0.35

(0.008–0.014)0.25–0.40

(0.010–0.016)0.25-0.45

(0.010-0.018)

10.2

300

Vermicular cast iron60-80

(195-260)0.06-0.18

(0.002-0.007)0.10-0.20

(0.004-0.008)0.14-0.25

(0.005-0.010)0.18–0.30

(0.007–0.012)0.20–0.35

(0.008–0.014)0.25–0.40

(0.010–0.016)0.25-0.45

(0.010-0.018)

12.0

90

Copper alloy, brass, lead alloy, bronze, lead bronze: good cut

UNS C36000250-400

(820-1310)

0.10-0.25(0.004-0.010)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.25-0.45(0.010-0.018)

0.35-0.50(0.014-0.020)

0.35-0.60(0.014-0.024)

0.35-0.65(0.014-0.025)

12.1

100 Copper alloy,

brass, bronze:average cut

180-350(590-1150)

0.08-0.20(0.003-0.008)

0.15-0.25(0.006-0.010)

0.15-0.30(0.006-0.012)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.30-0.45(0.012-0.018)

0.35-0.50(0.014-0.020)

13.0

60

Wrought alumi-num alloy GD–AlSi12 200-400

(655-1310)0.08-0.20

(0.003-0.008)0.15-0.25

(0.006-0.010)0.15-0.30

(0.006-0.012)0.20-0.35

(0.008-0.014)0.25-0.40

(0.010-0.016)0.30-0.45

(0.012-0.018)0.35-0.50

(0.014-0.020)

13.1

75

Aluminum alloy:Si content <10%

Magnesium alloy

200-400(655-1310)

0.10-0.25(0.004-0.010)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.25-0.45(0.010-0.018)

0.35-0.50(0.014-0.020)

0.35-0.60(0.014-0.024)

0.35-0.65(0.014-0.025)

14.0

100 Aluminum alloy:

Si content >10% A360.2 130-220(425-720)

0.10-0.25(0.004-0.010)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.25-0.45(0.010-0.018)

0.35-0.50(0.014-0.020)

0.35-0.60(0.014-0.024)

0.35-0.65(0.014-0.025)

15.0

1400 Hardened steels

< 45 HRC

16.0

1800 Hardened steels

> 45 HRC

Cutting dataGuideline values for Drillmax drills

PS

MK

N

21

(..) = inchFeed f mm/rev (in/rev)

Mat

eria

l gro

up

Stre

ngth

Rm (N

/mm

²)

Har

dnes

s H

B

Material

Material example,material codeAISI / SAE Ø

3.0

– 5

.0(Ø

0.1

18 –

0.1

97)

Ø 5

.1 –

8.0

(0.1

98 –

0.3

15)

Ø 8

.1 –

10.

0(Ø

0.3

16 –

0.3

94)

Ø 1

0.1

– 12

.0(Ø

0.3

95 –

0.4

72)

Ø 1

2.1

– 14

.0(Ø

0.4

73 –

0.5

51)

Ø 1

4.1

– 16

.0(Ø

0.5

52 –

0.6

30)

Ø 1

6.1

– 20

.0(Ø

0.6

31 –

0.7

87)

Cutting speed vc m/min(ft/min)

1.0

�50

0

Unalloyed steelA570.361213A573.81

2.0

500–

900

Low alloy steel512010555115

2.1

<500 Lead alloy 12L13

3.0

>90

0-12

00 High alloy steelheat resistant structural, heat treated, nitride steels

41401064

4.0

>12

00

Tool steels H13H21

4.1 HSS

5.0

250 Special alloy:

Inconel, Hastelloy, Nimonic, etc.

Inconel® 718Nimonic® 80A

5.1

400 Titanium,

Titanium alloys AMS R54520

6.0

�60

0 Stainless steel:austenitic300 series

304L316

6.1

<90

0

Stainless steels 630

7.0

>90

0 Stainless steel:martensitic/ferritic400 series

420403

8.0

180

Grey cast iron No 35 BNo 50 B

90-160(295-525)

0.10-0.25(0.004-0.010)

0.15-0.30(0.006-0.012)

0.20-0.40(0.008-0.016)

0.25–0.40(0.010–0.016)

0.25–0.45(0.010–0.018)

0.30–0.50(0.012–0.020)

0.30–0.55(0.012–0.022)

8.1

250

Alloy grey cast iron A436 Type 2

9.0

�60

0


ferritic 60–40–1870-130

(230-430)0.08-0.20

(0.003-0.008)0.15-0.25

(0.006-0.010)0.18-0.30

(0.007-0.012)0.20–0.35

(0.008–0.014)0.25–0.40

(0.010–0.016)0.25–0.45

(0.010–0.018)0.30-0.55

(0.012-0.022)

9.1


ferritic / pearlitic 80–55–06

10.0

>60

0


pearliticMalleable cast iron

100–70–03

70003

70-125(230-410)

0.06-0.18(0.002-0.007)

0.10-0.20(0.004-0.008)

0.14-0.25(0.005-0.010)

0.18–0.30(0.007–0.012)

0.20–0.35(0.008–0.014)

0.25–0.40(0.010–0.016)

0.25-0.45(0.010-0.018)

10.1

200 Alloyed nodular

cast iron A43D2

10.2

300

Vermicular cast iron

12.0

90

Copper alloy, brass, lead alloy, bronze, lead bronze: good cut

UNS C36000250-400

(820-1310)

0.10-0.25(0.004-0.010)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.25-0.45(0.010-0.018)

0.35-0.50(0.014-0.020)

0.35-0.60(0.014-0.024)

0.35-0.65(0.014-0.025)

12.1

100 Copper alloy,

brass, bronze:average cut

180-350(590-1150)

0.08-0.20(0.003-0.008)

0.15-0.25(0.006-0.010)

0.15-0.30(0.006-0.012)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.30-0.45(0.012-0.018)

0.35-0.50(0.014-0.020)

13.0

60

Wrought alumi-num alloy GD–AlSi12 200-400

(655-1310)0.08-0.20

(0.003-0.008)0.15-0.25

(0.006-0.010)0.15-0.30

(0.006-0.012)0.20-0.35

(0.008-0.014)0.25-0.40

(0.010-0.016)0.30-0.45

(0.012-0.018)0.35-0.50

(0.014-0.020)

13.1

75

Aluminum alloy:Si content <10%

Magnesium alloy

200-400(655-1310)

0.10-0.25(0.004-0.010)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.25-0.45(0.010-0.018)

0.35-0.50(0.014-0.020)

0.35-0.60(0.014-0.024)

0.35-0.65(0.014-0.025)

14.0

100 Aluminum alloy:

Si content >10% A360.2 150-260(490-850)

0.10-0.25(0.004-0.010)

0.20-0.35(0.008-0.014)

0.25-0.40(0.010-0.016)

0.25-0.45(0.010-0.018)

0.35-0.50(0.014-0.020)

0.35-0.60(0.014-0.024)

0.35-0.65(0.014-0.025)

Graphite 90-140(295-460)

0.08-0.15(0.003-0.006)

0.12-0.25(0.005-0.010)

0.18-0.28(0.007-0.011)

0.22-0.30(0.009-0.012)

0.22-0.32(0.009-0.013)

0.25-0.35(0.010-0.014)

0.28-0.40(0.011-0.016)

Cutting dataGuideline values for Drillcut drills

Ø 3 – 20 mm Ø 6 – 26 mm Ø 6 – 26 mm Ø 3 – 20 mm Ø 6 – 16 mm Ø 6 – 26 mm Ø 3 – 20 mm2 – 4 2 – 4 4 4 – 8 6 – 16 4 2 – 4TiAlN TiAlN TiAlN AlTiN AlTiN TiAlN TiAlN

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)Kf Kf Kf Kf Kf Kf Kf

P1.

1 ≤400 ≤120

1.2 ≤700 ≤200

1.3 ≤850 ≤250

1.4 ≤850 ≤250

1.5 >850

≤1200>250≤350

1.6 >1200 >350

H1.

7 ≤1400 ≤400

1.8 ≤2200 ≤600

M2.

1 ≤850 ≤250

2.2 ≤850 ≤250

2.3 ≤1000 ≤300

K3.

1 ≤500 ≤150

3.2 >500

≤1000>150≤300

3.3 400-

500200-250

3.4 ≤700 ≤200

3.5 >700

≤1000>200≤300

3.6 ≤700 ≤200

3.7 >700

<1000>200≤300

S4.

1 ≤700 ≤200

4.2 ≤900 ≤270

4.3 >900

≤1250>270≤300

5.1 ≤500 ≤150

5.2 ≤900 <270

5.3 >900

≤1200>270≤350

N6.

1 ≤350 ≤100

6.2 ≤700 ≤200

6.3 ≤700 ≤200

6.4 ≤500 ≤470

7.1 ≤350 ≤100

7.2 ≤600 ≤180

7.3 ≤600 ≤180

7.4 ≤600 ≤180

7.5 ≤600 ≤180

8.1

8.2

8.3

22

(..) = inch

Cutting dataGuideline values for milling

Magnetic soft iron 165 (540) 2 165 (540) 2 180 (590) 2 165 (540) 2 170 (555) p4

Structural, case hardened steel 135 (440) 2 135 (440) 2 160 (525) 2 150 (490) 2 160 (525) p4

Carbon steel 125 (410) 2 125 (410) 2 140 (460) 2 140 (460) 2 150 (490) p4

Alloy steel 125 (410) 2 125 (410) 2 140 (460) 2 140 (460) 2 150 (490) p4

Alloy/heat treated steel 100 (330) 1 100 (330) 1 120 (390) 1 120 (390) 1 130 (425) p4

Alloy/heat treated steel 90 (295) 1 90 (295) 1 100 (330) 1 100 (330) 1 95 (310) p3

Hardened steel to 56 HRC 80 (260) 4 80 (260) 4

Hardened steel to 65 HRC 60 (195) 4 60 (195) 4

Stainless steel, sulphuretted 75 (245) 1 75 (245) 1 110 (360) 1 95 (310) p3

Austentic 65 (215) 1 65 (215) 1 110 (360) 1 85 (280) p2

Ferritic, ferritic & austentic, martensitic 70 (230) 1 70 (230) 1 110 (360) 1 75 (245) p3

Grey cast iron 150 (490) 2 150 (490) 2 150 (490) 2 160 (525) 2 225 (740) p4

Grey cast iron, heat treated 130 (425) 2 130 (425) 2 130 (425) 2 140 (460) 2 210 (690) p4

Vermicular cast iron 130 (425) 2 130 (425) 2 130 (425) 2 140 (460) 2 210 (690) p4

spheroidal graphite cast iron 130 (425) 2 130 (425) 2 130 (425) 2 140 (460) 2 190 (625) p4

Spheroidal graphite cast iron, heat treated 110 (360) 2 110 (360) 2 110 (360) 2 120 (390) 2 160 (525) p4

Malleable iron 110 (360) 2 110 (360) 2 110 (360) 2 120 (390) 2 145 (475) p4

Malleable iron, heat treated 110 (360) 2 110 (360) 2 110 (360) 2 120 (390) 2 145 (475) p4

Pure titanium 60 (195) 1 60 (195) 1 60 (195) 1 65 (215) 1

Titanium alloys 60 (195) 1 60 (195) 1 60 (195) 1 65 (215) 1

Titanium alloys 55 (180) 1 55 (180) 1 55 (180) 1 60 (195) 1

Pure nickel 45 (145) 1 45 (145) 1 45 (145) 1 55 (180) p2

Nickel alloys, heat resistant 35 (115) 1 35 (115) 1 35 (115) 1 55 (180) p2

Nickel alloys, high heat resistant 30 (100) 1 30 (100) 1 30 (100) 1 45 (145) p2

Non-alloy copper 175 (575) 3 175 (575) 3 190 (625) 3 145 (475) p5

Short chip brass, bronze, red brass 160 (525) 3 160 (525) 3 180 (590) 3 140 (460) p5

Long chip brass 175 (575) 3 175 (575) 3 190 (625) 3 145 (475) p5

Cu-Al-Fe alloy (Ampco) 100 (330) 3 100 (330) 3 110 (360) 3 80 (260) p5

Al, Mg non-alloy 280 (920) 3 280 (920) 3 310 (1015) 3 520 (1705) p5

Al wrought alloy, breaking strain (A5) <14 % 260 (855) 3 260 (855) 3 285 (935) 3 460 (1510) p5

Al wrought alloy, breaking strain (A5) 14 % 260 (855) 3 260 (855) 3 285 (935) 3 460 (1510) p5

Al cast alloy, Si <10 % 240 (785) 3 240 (785) 3 270 (885) 3 270 (885) p5

Al cast alloy, Si 10 % 200 (660) 3 200 (660) 3 220 (720) 3 220 (720) p5

Thermoplastics 160 (525) 3 160 (525) 3 175 (575) 3 210 (690) p5

Thermosetting plastics 175 (575) 3 175 (575) 3 190 (625) 3 225 (740) p5

Fiber reinforced plastics 145 (475) 3 145 (475) 3 160 (525) 3 190 (625) p5

Mat

eria

l Gro

up

Stre

ngth

Rm

(N/m

m²)

Har

dnes

s H

B

Type End milling cutter UNI

End milling cutter UNI

End milling cutter HPC

End milling cutter XH


Roughing end mill

Spherical cutter

Diameter# of teethCoating

Material

vc = Cutting speed; Kf = Correction factor for feed fz (page 25)

Ø 3 – 16 mm Ø 6 – 16 mm Ø 3 – 20 mm Ø 4 – 10 mm Ø 6 – 10 mm Ø 6 – 12 mm Ø 6 – 12 mm Ø 6 – 8 mm Ø 3 – 20 mm Ø 6 – 26 mm Ø 4 – 8 mm2 2 – 4 2 – 4 2 – 4 6 2 3 – 4 4 2 – 3 2 1

AlTiN AlTiN TiAlN AlTiN AlTiN AlTiN TiAlN TiAlN TiAlN TiB2 TiAlN

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)

vc m/min(ft/min)Kf Kf Kf Kf Kf Kf Kf Kf Kf

23

(..) = inch

Cutting dataGuideline values for milling

235 (770) p4 225 (740) p4 165 (540) 2 225 (740) p4 165 (540) 165 (540)

220 (720) p4 210 (690) p4 135 (440) 2 210 (690) p4 135 (440) 135 (440)

205 (670) p4 200 (660) p4 125 (410) 2 200 (660) p4 125 (410) 125 (410)

205 (670) p4 200 (660) p4 125 (410) 2 200 (660) p4 125 (410) 125 (410)

180 (590) p4 175 (575) p4 100 (330) 1 175 (575) p4 100 (330) 100 (330)

135 (440) p3 125 (410) p3 90 (295) 1 125 (410) p3 90 (295) 90 (295)

145 (475) p1 140 (460) p1 80 (260) p4 80 (260) 4 140 (460) p1

125 (410) p1 120 (390) p1 60 (195) p4 60 (195) 4 120 (390) p1

75 (245) 1 75 (245) 75 (245)

65 (215) 1 65 (215) 65 (215)

70 (230) 1 70 (230) 70 (230)

305 (1000) p4 300 (985) p4 150 (490) 2 300 (985) p4 150 (490) 150 (490)

280 (920) p4 275 (900) p4 130 (425) 2 275 (900) p4 130 (425) 130 (425)

280 (920) p4 275 (900) p4 130 (425) 2 275 (900) p4 130 (425) 130 (425)

260 (855) p4 250 (820) p4 130 (425) 2 250 (820) p4 130 (425) 130 (425)

220 (720) p4 210 (690) p4 110 (360) 2 210 (690) p4 110 (360) 110 (360)

200 (660) p4 190 (625) p4 110 (360) 2 190 (625) p4 110 (360) 110 (360)

200 (660) p4 190 (625) p4 110 (360) 2 190 (625) p4 110 (360) 110 (360)

60 (195) 1 60 (195) 60 (195)

60 (195) 1 60 (195) 60 (195)

55 (180) 1 55 (180) 55 (180)

45 (145) 1 45 (145) 45 (145)

35 (115) 1 35 (115) 35 (115)

30 (100) 1 30 (100) 30 (100)

175 (575) 3 175 (575) 175 (575) 150 (490) 3 150 (490) 3

160 (525) 3 160 (525) 160 (525) 140 (460) 3 140 (460) 3

175 (575) 3 175 (575) 175 (575) 150 (490) 3 150 (490) 3

100 (330) 3 100 (330) 100 (330) 80 (260) 3 80 (260) 3

280 (920) 3 280 (920) 280 (920) 500 (1640) 3 300 - 600(985-1970) 3 500 (1640) 3

260 (855) 3 260 (855) 260 (855) 420 (1375) 3 300 - 600(985-1970) 3 420 (1375) 3

260 (855) 3 260 (855) 260 (855) 420 (1375) 3 300 - 600(985-1970) 3 420 (1375) 3

240 (785) 3 240 (785) 240 (785) 270 (885) 3 200 - 500(660-1640) 3 270 (885) 3

200 (660) 3 200 (660) 200 (660) 220 (720) 3 100 - 300(330 - 985) 3 220 (720) 3

160 (525) 3 160 (525) 160 (525) 150 (490) 3 150 (490) 3

175 (575) 3 175 (575) 175 (575) 160 (525) 3 160 (525) 3

145 (475) 3 145 (475) 145 (475) 120 (390) 3 120 (390) 3

Spherical cutter XH

Spherical cutter XH

End milling cutter


End milling utter XH

Torus milling cutter XH

Chamfer milling cutter

Radius milling cutter

End milling cutter AL

End milling cutter HF

End milling cutter AL

24

ae = Ø D

a p =

0.5

× D

ae = 0.5 × D

a p =

0

ae = 0.05 × D

a p =

1.5

× D

Slot millingvc slot = 0.7 × vc

Rough millingvc rough = vc

Finish millingvc fi nish = 1.5 × vc

JEL® Solid carbide milling cuttersTechnical notes

Ø D

a p =

0.0

5 ×

D

ae = 0.05 × D

max

. 80°

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0 5 10 15 20 25

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0 5 10 15 20 25

0.26

0.24

0.22

0.20

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0 5 10 15 20 25

0.06

0.05

0.04

0.03

0.02

0.01

0 5 10 15 20 25

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0 5 10 15 20 25

Ø D (mm)

Kf 1

ae = 0.2 m

m

ae = 0.5 m

m × D

ae = D

Ø D (mm)

Kf 2

ae = 0.2 m

m

ae = 0.5 mm × D

ae = D

Ø D (mm)

Kf 3

ae =

0.2

mm

ae = 0.

5 mm

× D

ae = D

Ø D (mm)

ae = 0.01 mm × D

ae = 0.02 mm × D

ae = 0.05 mm × D

Ø D (mm)

Kf p1-p5

p1

p2

p3

p4

p5

Feed

fz

(mm

/too

th)

Feed

fz

(mm

/too

th)

Feed

fz

(mm

/too

th)

Feed

fz

(mm

/too

th)

Kf 4 – hardened steelap maxØ. = 0.2 mm

Feed

fz

(mm

/too

th)

25

for feed fz

JEL® Solid carbide milling cuttersCorrection factors Kf

26

Drilling guide for 3–5 x D Tools

1. Drilling on fl at, machined surface• Spot drilling without reduction in feed. Omit both re–clamping cycles and initial spotting/

centering operations.Note: If the centering has already been performed, the high–precision positioning must bekept so the drill axis meets the center hole exactly. Both center hole angle and drill point anglemust be identical.

2. Drilling uneven surface (Castings)• When inserting and withdrawing the drill, reduce the feed rate by as required (depending on

component stability, clamping and surface quality).Note: Up to a 5° cast surface inclination is allowed (see point 3).

3. Drilling on angled surface• Depending on starting angle, feed must be reduced when starting the bore. Rule of thumb:

� 2° – 80%� 4° – 70%� 6° – 80% > 6° – Starting surface must be spot faced

4. Angled bore exit• For tools > 4xD, reduce feed by up to 50% at the bore exit.

5. Drilling with a cross hole• Please contact your local KOMET application specialist for more information regarding drilling

through a cross hole.

� �

�

6. Drilling into interrupted cut• First drill � + �, then drill.• To avoid chip jams in bore � use HSS drill.

27


7. Starting on a groove or large center drilled hole• Groove or centering bore must be spot–faced fi rst (diameter at least 0.1 mm larger than the

drill‘s diameter).

8. Drilling on an edge• Not recommended

9. Drilling into welded joint• Surface for starting bore must be spot faced beforehand.• Continue as described in point 1.

10. Drilling on curved surface• If boring is started centrally on the convex surface, this can be done with reducing the

parameters.• If the point for starting the bore is outside the radius center, see point 3. Small radius

curvatures are to be spot–faced fi rst.

11. Drilling through stacked platesAs long as the following conditions are met, drilling can be performed according to point 2.• Tangential surfaces are machined• There are no gaps between the surfaces.• Clamped workpiece is stable.

Note: Welding can cause considerable gaps between workpieces. In this case, drilling is notrecommended as edge chipping can occur.

28


1. Drilling on fl at, machined surface• Up to 0.25xD hole depth, feed reduction by over 50% is recommended.• Omit both re–clamping cycles and initial spotting/centering operations.

2. Drilling uneven surface (Castings)• Identical to 3–5xD tools, with more reduction in feed rate.

3. Drilling on angled surface• Not recommended• Surface for starting bore must be spot faced beforehand.• Continue as described in point 1.

4. Angled bore exit• Reduce feed by up to 50%.

5. Drilling with a cross hole• Please contact your local KOMET application specialist for more information regarding drilling

through a cross hole.

� �

�

6. Drilling into interrupted cut• First drill � + �, then drill.• To avoid chip jams in bore � use HSS drill.

29


7. Starting on a groove or large center drilled hole• Groove or centering bore must be spot–faced fi rst (diameter at least 0.1 mm larger than the

drill‘s diameter).

8. Drilling on an edge• Not recommended

9. Drilling into welded joint• Surface for starting bore must be spot faced beforehand.• Continue as described in point 1.

10. Drilling on curved surface• Surface for starting bore must be spot faced beforehand.• Continue as described in point 1.

11. Drilling through stackplate• Not recommended

30

Inner cutting edge• Bigger back taper and narrower width of radial land.• The protruding length of the drill should be shortened as much as possible without

constricting chip fl ow.• Feed rate should be decreased.

Outer cutting edge• Increase clearance angle at the outer cutting edge.• The interval between regrinding drills should be shortened.• Feed rate should be decreased.• Cutting speed should be decreased.

Rake face• The interval between regrinding drills should be shortened.• Feed rate should be decreased.

Radial land• Bigger back taper and n arrower width of radial land.• The protruding length of the drill should be shortened as much as possible without

constricting chip fl ow.• The interval between regrinding drills should be shortened.• Lip height and run out of center cutting edges should be within 0.02 ~ 0.025 mm

• Bigger back taper and narrower width of radial land.• The protruding length of the drill should be shortened as much as possible without

constricting chip fl ow.• Lip height and run out of center cutting edges should be within 0.02 ~ 0.025 mm• Edge treatment should be larger.• Clearance angle should be smaller.• Feed rate should be decreased.

• Bigger back taper and narrower width of radial land.• The interval between regrinding drills should be shortened.• Cutting speed should be decreased.• Feed rate should be decreased.

Troubleshooting guide

Drill wear

Drill chipping

Cracking

31

• Lip height and run out of center cutting edges should be within 0.02 ~ 0.025 mm• Expand the fl ute width. Flute length should be maintained (ideal length is 1.5 L/D)• Point angle should be increased.• The helical angle should be reduced (when it is used on a horizontal machine)• Cutting speed should be decreased.• Feed rate should be decreased.

• Bigger back taper and narrower width of radial land.• Lip height and run out of center cutting edges should be within 0.02 ~ 0.025 mm• Expand the fl ute wid th. Flute length should be maintained (ideal length is 1.5 L/D)• The protruding length of the drill should be shortened as much as possible without

constricting chip fl ow.• Feed rate should be decreased.

• Bigger back taper and narrower width of radial land.• The protruding length of the drill should be shortened as much as possible without

constricting chip fl ow.• Feed rate should be decreased.• Cutting speed should be decreased.

• Expand the fl ute width. Flute length should be maintained (ideal length is 1.5 L/D)• Cutting speed should be decreased.• Feed rate should be decreased.

• Bigger back taper and narrower width of radial land.

• The protruding length of the drill should be shortened as much as possible withoutconstricting chip fl ow.

• Lip height and run out of center cutting edges should be within 0.02 ~ 0.025 mm• Cutting speed should be decreased.• Feed rate should be decreased.

• Point angle should be increased.• Feed rate should be decreased.• Edge treatment should be smaller.

Body damage by dhips

Breakage

Chattering

Chip packing

Workpiece hardening

Inaccuracy

Burrs at exit

Troubleshooting guide

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