Proto Industrial Tools’ 3/8” and 1/2” Mini Impact Wrenches are versatile, durable and optimized for confined spaces. At 4.4” in length, the 3/8” mini impact wrench features 445 foot-pounds of breakaway torque. Also at 4.4” in length, the 1/2” features 635 foot-pounds of breakaway torque. Each unit weighs 2.9 lb., which adds to their ease-of-use. They are compatible with the company’s line of impact sockets and drive tools.