Gear and Pulley Puller Spread - Minimum 1 1/2 in Spread - Maximum 4 1/4 in Forcing Screw Size 5 1/2 in Cap Screw Size - Maximum 3/8 in Application Removing Timing Gears Fan Pulley Harmonic Balancers and Other Parts Having Tapped Holes Includes (2) Hex Head Cap Screws 3/8 in-16 x 3 in Long