Greenlee DTAP1/4-20 Combination Drill/Tap Countersink Drill Bit for up to 10-Gauge Metal, Combination Drill, Tap, and Deburr Bit with Quick Change Hex, 1/4-20 NC
Drill/tap high-speed steel bit, split point with web thinning. High quality hex shank to ensure strong connection to drill chuck. Complete hole drilling, tapping and deburring/countersinking in one operation with power drill. Designed to tap up to 10 gauge metal. Back taper or deburr/countersink beyond tap to prevent thread damage from over-drilling.