IRWIN WOOD COUNTERSINK - #12Drills precise pilot holes and countersinks in one step for #12 wood screws. Features a tapered drill with widened flutes for fast, clean holes and an adjustable 4-cutter counterbore for smooth countersinking.
- Tapered drill with widened flutes for fast, clean pilot holes
- Adjustable 4-cutter counterbore cuts and clears chips quicker for smooth countersinking
- Counterbore attaches to flats on shank with two hex screws - adjustable for depth
- 1/4" quick-change shank reduces slippage in drill chuck and fits impact drills
- 7/32" drill bit diameter
- For #12 screw size