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 or countersinking in one operation with power drill. Designed to tap up to 10 ga metal. Back taper or deburr or countersink beyond tap to prevent thread damage from over-drilling.
|Shank Size||:||1/4 in|