The IQV20 Cordless High Torque Impact Wrenches, Nos. W8171 and W8191, from Ingersoll Rand, is a cordless pistol-grip impact wrench with a brushless motor that helps remove difficult fasteners. These wrenches weigh 10 percent less than pneumatic with equal performance. Additional features include a patented 360-degree shadowless LED light ring, rubberized bumpers for damage protection, an over-molded grip, a durable metal casing, and a variable speed trigger with an electronic brake. These wrenches are IPX6-rated for tough environmental conditions and have 2,000 ft-lbs of breakaway torque.