Proto Industrial Tools' Titanium Series Pistol Air Impact Wrenches come in 3/8" drive (No. J138WP), 1/2" drive compact (No. J150WP-C), 1/2" drive industrial impact (No. J150WP) and the 3/4" drive heavy-duty impact (No. J175WP). The motor design of these impacts reduces the number of parts needed, and ultimately lowers the weight of the tool. They come constructed with a titanium front housing for reduced weight and maximum durability. The impact wrenches also feature an air inlet 360-degree rotation for easy compressor hook-up and a titanium exhaust deflector for increased durability and muffler for reduced noise.