Irwin 1882630 Drill Bit, 7/64 in Dia, 3-3/8 in OAL, Countersink, 4-Flute, 1/4 in Dia Shank tools--07-20-26 1/4 in THK

1/4 in THK

When the job's done

The air Inlet is 1/4 in NPT

hand rubbed beauty

Irwin 1882630 Drill Bit, 7/64 in Dia, 3-3/8 in OAL, Countersink, 4-Flute, 1/4 in Dia Shank tools--07-20-26 1/4 in THKTapered drill with widened flutes for drilling fast, clean pilot holes. 1 4 in quick change shank reduces slipping in standard chucks and is compatible with all 1 4 in quick change chucks, including impact drills. Adjustable four cutter counterbore cuts and clears chips quicker for fast, smooth countersinking. Counter bore attaches to flats on shank with two hex screws for a secure fit and can be adjusted for controlled pilot hole depth. Tapered pitch