Gear and Pulley Puller, (2) 3/8 In.-16x3 In. Head Hex Cap Screws, Spread - Minimum 1 1/2 in, Spread - Maximum 4 1/4 in, Forcing Screw Size 13 in, Cap Screw Size - Maximum 3/8 in, Application Fan Pulleys, Harmonic Balancers, Parts Having Tapped Holes, Removing Timing Gears, Compatible with Product Type Differential Bearings, Includes (2) Hex Head Cap Screws