Ascot 1 2" Drive Air Impact Wrench, 2" Shank, 600 ft lbs Torque Pneumatic Power Tool Air Hose This prevents the nut from even after long periods This prevents the nut from pulling through soft aluminum wheels and provides better torque retention on steel wheels Utilize the 3 speed push button switch to easily increase speeds for optimal mounting 1 2" impact wrench 2" shank 600 ft lbsProven design and the most popular configuration in the tire service industryPowered by the durable and high performing twin hammer mechanism600 ft lbs of maximum torque output for fast efficient fastener removal and installation2" extended shank design provides superior reach and access in tight wheel service applicationsCompact and lightweight design reduces operator fatigue during extended use in professional shop environments1 2" square drive compatible with standard impact sockets and accessoriesPneumatic powered requires air compressor (energy efficient and maintenance friendly alternative to electric models)