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