![IRWIN INDUSTRIAL TOOL Tapered Countersink Tool #10](http://jaxgoods.com/cdn/shop/products/wood-countersinks-1659_743b068b-34ec-4a36-b47c-b2676021fdb1_320x320.jpg?v=1686267840)
Tapered Countersink Tool #10
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.