Mechanical Grip-O-Matic Puller Remove and install parts for fast, effective repairs. The puller is forged from quality steel, heat treated, and subjected to rigorous tests which exceed their rated capacity. 2-Ton, 2-Jaw (Reversible Jaws), Max. Reach 3-1/4 in. Max. Spread 4 in. Screw Size 3/8 in. - 24 x 4-7/8 in.,Jaw Thickness Upper 3/16 in. Lower 1/8 in., Jaw Width Upper 1/4 in., Lower 1/2 in.