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Unit 16Unit 16Portable Power Drills and
ScrewdriversPortable Power Drills and
Screwdrivers
Portable Power Drills • Power Screwdrivers • Power Drill, Impact Wrench, and Screwdriver Safety
Portable Power Drills • Power Screwdrivers • Power Drill, Impact Wrench, and Screwdriver Safety
Unit 16 — Portable Power Drillsand Screwdrivers
Unit 16 — Portable Power Drillsand Screwdrivers
Power drills are available in a variety of sizes and grip configurations and for a variety of power sources. Select the appropriate tool for the operation being performed.
Power drills are available in a variety of sizes and grip configurations and for a variety of power sources. Select the appropriate tool for the operation being performed.
Unit 16 — Portable Power Drillsand Screwdrivers
Unit 16 — Portable Power Drillsand Screwdrivers
Bit shanks are straight or reduced in diameter. Reduced-shank bits allow a bit that is larger in diameter than the drill capacity to fit a chuck.
Bit shanks are straight or reduced in diameter. Reduced-shank bits allow a bit that is larger in diameter than the drill capacity to fit a chuck.
Unit 16 — Portable Power Drillsand Screwdrivers
Unit 16 — Portable Power Drillsand Screwdrivers
A variety of bits, including twist drills, masonry bits, and hole saws, are commonly used to bore holes in wood and nonwood materials.
A variety of bits, including twist drills, masonry bits, and hole saws, are commonly used to bore holes in wood and nonwood materials.
Unit 16 — Portable Power Drillsand Screwdrivers
Unit 16 — Portable Power Drillsand Screwdrivers
A hammer-drill is typically used to drill holes in concrete. Carbide-tipped percussion masonry bits are used to drill concrete.
A hammer-drill is typically used to drill holes in concrete. Carbide-tipped percussion masonry bits are used to drill concrete.
Unit 16 — Portable Power Drillsand Screwdrivers
Unit 16 — Portable Power Drillsand Screwdrivers
A rotary hammer may be used to chip concrete with a cold chisel bit.
A rotary hammer may be used to chip concrete with a cold chisel bit.
Unit 16 — Portable Power Drillsand Screwdrivers
Unit 16 — Portable Power Drillsand Screwdrivers
Impact wrenches are used to install and remove nuts, bolts, and screws.
Impact wrenches are used to install and remove nuts, bolts, and screws.
Unit 16 — Portable Power Drillsand Screwdrivers
Unit 16 — Portable Power Drillsand Screwdrivers
A drywall screwdriver is specifically designed for fastening gypsum board to support members.
A drywall screwdriver is specifically designed for fastening gypsum board to support members.
