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 | 6254080 | UPC | 024721901064 |
| Model Number | 4935704 | Brand | Irwin |