This is the toughest impact wrench in its class. It features a twin hammer clutch for ultimate power and endurance, force feed lubrication, cushion grip handle, variable speed trigger control, adjustable power regulator. The classic design of the 21 piece construction with a spring steel clutch housing to protect the mechanism from external abuse. Specifically designed for the tire changers and muffler (shock) shops. Product Features:1/2 Sq. DriveBolt Cap: 5/8 Free Speed: 8000 rpmMax Torque: 425 ft lbsWorking Torque: 25-300 ft lbsAir Inlet: 1/4 Hose Size: 3/8
