AUTOTOOLHOME Combination Drill and Tap Bit 6-32nc 8-32nc 10-32nc 10-24nc 12-24nc 1/4-20nc Set of 6

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