TAPS

Purpose: Taps are used to cut internal threads within a drilled hole. Taps are selected by diameter,

and number of threads per inch.

Available tap sizes: diameter is in bold, followed by threads per inch Instructions:•Select diameter, and threads per inch of the desired thread.•Consult Tap Drill chart to find proper drill bit sized for thread.•Select cutting speed by using the Cutting Speed Chart•Drill hole.•If the hole is through the material, use a tapered tap to cut the threads.•If the hole is not through, use a bottoming tap to cut the threads.

1/16” 1/4” 1/2” 1”

1/8” 3/8” 3/4”

Available NPT standard pipe taps

Location of taps

Purchasing Instructions

Last updated June 9, 2004

#2 -56 #10 -32 3/8” -24 5/8” -11 1” -8

#4 -40 1/4” -20 7/16” -14 5/8” -18 1” -14

#5 -40 1/4” -28 7/16” -20 3/4” -10 1 1/8” -7

#6 -32 5/16” -18 1/2” -13 3/4” -16 1 1/8” -12

#8 -32 5/16” -24 1/2” -20 7/8” -9 1 1/4” -7

#10 -24 3/8” -16 9/16” -12 7/8” -14