OTC 7392 Gear and Pulley Puller Tool is perfect for removing timing gears fan pulleys harmonic balancers and many other parts having tapped holes Puller will spread from 1-1/2 inch to 4-1/4 inch The puller blocks are 4-7/8 inch wide Includes two hex head cap screws 3/8 inch -16 x 3 inch long and a center screw 13 inch long