Mechanical Jaw Puller, Locking, Capacity 2 ton, Number of Jaws 2 or 3, Reversible, Jaw Reach 3-1/4 In., Jaw Spread 4-3/4 In., 3/8-24 X 4-7/8 Screw Size, Steel, Puller Length 5 In., For Use With Slide Hammers, Designed to Pull Gears, Bearings, Pulleys and Wheels Enables You to Remove and Install Pares For Fast Effective Repairs , Includes 2 or 3 Jaw, 1 lb. 5 oz. Thread and Screw