The GearWrench 80 Series Air Impact Wrenches are available in 3/8" (No. 88030), 1/2" (No. 88050) and 3/4" (No. 88070) drives. Offering a powerful, twin-hammer impact mechanism as well as metal rear end plates, the 80 Series Air Impact Wrenches feature a variable speed trigger for precise control. These impact wrenches also offer a high-efficiency air motor. The tools come with a one-year warranty.