The extension wrench lets you reach those tight areas with ease. Turn nuts and bolts with 0° of arc — no more turning bolts one click at a time. 1-to-1 gear ratio delivers 92% of the pressure you exert directly to the nuts or bolts you are fastening. You can even use your impact wrench (up to 150 ft.-lbs.) to remove rusted, hard-to-remove nuts and bolts.