OTC's 7392 Gear and Pulley Puller is perfect for removing timing gears, fan pulleys, harmonic balancers, and many other parts having tapped holes Puller features a spread of 1-1/2 inches to 4-1/4 inches Puller block is 4-7/8 inches wide 13 inch long center screw; includes 2 ea. 3/8-16 x 3 inch long hex head cap screws High-grade materials ensure quality performance over the lifetime of the tool