![IRWIN INDUSTRIAL TOOL SPEEDBOR 12 in. Bit Extension](http://jaxgoods.com/cdn/shop/products/41Q-dMe8qmL._AC_SL1411_1396x488.jpg?v=1686267736)
SPEEDBOR 12 in. Bit Extension
Speedbor Drill Bit Extensions, adds 12 inches to regular bit length and follow 5/8-inch or larger bit through the hole, for all wood bits with 1/4-inch round shanks, has three flats on shank. Forged of finest quality Irwin tool steel and made in heavy-duty, double set screw type. Irwin tools are made of only the finest materials, manufactured to exacting tolerances.