Irwin Impact Quick-Change Bit Extension 1/4" Shank, 12-Inch Length Size:1/4" x 12" 3/8" reduced shank fits all

3/8" reduced shank fits all 3/8" drills

Includes 1 each of lobular magnetic nutsetters 1/4" x 3"

No other cartridges are certified to be fitted with this mask

but are tough enough to be used with hammer drills

Very Effective On Flat Surfaces & In Hard To Reach Areas Like Slots

Irwin Impact Quick-Change Bit Extension 1/4" Shank, 12-Inch Length Size:1/4" x 12" 3/8" reduced shank fits allPatented jaw design is compatible with all 1 4" hex shank accessories including insert bits Large chuck withstands higher torque demands of impact drills 1 4" quick change shank is designed to work with impact drivers, and reduces slipping in standard drill chucks