Replacement tapered drill bits with widened flutes for drilling fast, clean pilot holes. Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling. Attaches and adjusts with 2 hex screws. Counterbore attaches to flat on shank for a more secure fit. Adjustable stop collar attaches to counterbore for controlling countersink depth. 1/4" hex quick change shank reduces slipping in standard chucks and is compatible with impact drivers.
| SKU | 301670 | UPC | 042526923197 |
| Weight | 0.06 | Package Width | 7.2 |
| Package Length | 1.8 | Package Height | 0.45 |
| Model Number | 1882791 | Brand | Irwin |