AUTOTOOLHOME 6 Pack Combination Drill and Tap Bit Set 6-32nc 8-32nc 10-32nc 10-24nc 12-24nc 1/4-20nc Screw Tap Drill Bits for Drilling Tapping Countersinking


Complete hole drilling, tapping, deburring and countersinking in one operation with power
drill saves labor and time
Back tapered beyond tap to prevent thread damage from over-drilling
Deburr/countersink also provided on bit beyond back taper
Made from hardened high-speed steel vs carbon steel for longer life
Designed to tap up to 10-gauge metal
6-32NC (3.5mm), 8-32NC(4.2mm), 10-32NC(5mm), 10-24NC (5mm), 12-24NC(5.7mm), 1/4-20NC(6.35mm)
Package include: 6pc tap drill bits