Combination Drill/Tap Bits. 1/4-20NC. Complete hole drilling, tapping and deburring/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. High quality hex shank to ensure strong connection to drill chuck. Designed to tap up to 10-gauge metal. Quick change adaptor included in both metric and standard kits.
Modified Industry Description
1/4-20 DRILL TAP BIT
Greenlee® DTAP1/4-20 Split Point Tap Drill Bit
Ever have to hunt around or figure out which drill bit to use with a certain tap? Tired of using a T-handle to tap the hole? No more, because now you've got the Greenlee combination drill tap bit, which drills the proper hole size and taps the hole all-in one operation and at an affordable price - saving you time and money.