Power Team® shaft protectors are designed to protect shaft centers from distortion when extreme pressures are applied with jaw-type pullers or Push-Pullers®. Shaft protectors are inserted between the end of the puller screw and the shaft. Power Team® Shaft Protector, For Use With: Jaw Type Puller, Bi-Directional™ Puller, Push-Pullers® and Shop Press, 1-1/4 in Dia x 3/4 in H Dimensions