Specification model: 6-32nc, 8-32nc, 10-32nc, 10-24nc, 12-24nc, 1/4-20nc
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 (HSS 4341) vs carbon steel for longer life