![IRWIN INDUSTRIAL TOOL Tapered Countersink Replacement Bit #6](http://jaxgoods.com/cdn/shop/products/wood-countersinks-replacement-bits-1663_320x320.jpg?v=1686267846)
Tapered Countersink Replacement Bit #6
Tapered drill with widened flutes for drilling fast, clean pilot holes.. Adjustable four-cutter counterbore cuts and clears chips quicker for fast, smooth countersinking. Counterbore attaches to flats on shank with two hex screws for a secure fit, and can be adjusted for controlled pilot hole depth. 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.