For use with all speedbor, lock-n-load. 1/4-inch grooved hex shank bits & hundreds of other power tool accessories using 1/4-inch grooved hex shank. Slim diameter chuck & extension passes through 5/8-inch hole.
| SKU | 9463712 | UPC | 024721901125 |
| Model Number | 4935705 | Brand | Irwin |