The P.I.T.Impact Wrench it is perfect for heavy maintenance, installing and removing heavy fasteners, and auto/machine installation. 1/2″ anvil with heavy duty hog ring for secure socket retention. All-metal gear construction for longer life and durability. One-handed forward/reverse switch easy for operation. Easy to replace/maintain carbon brushes. The comfortable grip and ergonomic design of this Impact Wrench deliver superior handling in heavy duty applications.