Includes five forks: 11/16", 15/16", 1-1/8", 1-7/16" and 1-5/8"The forks are threaded to interchange with either the handle for hammering or the pneumatic driverThe forks are heavy-duty forgings and the handles are heat-treated alloy steelStep Design on the Forks Keeps the Tool from Bouncing Back when Separating Ball Joints, Steering Dampeners, Tie Rods, Pitman Arms and Other Applications.