1/4" quick change shank reduces slipping in standard chucks and is compatible with all 1/4" quick change chucks, including impact drills. Counter bore attaches to flats on shank with two hex screws for a secure fit and can be adjusted for controlled pilot hole depth.
- Bit # : 10
- 4 cutter head
- Tapered drill with widened flutes for drilling fast, clean pilot holes
- Adjustable four-cutter counterbore cuts and clears chips quicker for fast, smooth countersinking