Jergens®, 25103, Fixture Jack, Serrated, Shank Diameter Compatibility: 1-1/2 in, 3 1/2 in OD, 1 Piece

Jergens Fixture Jacks feature a positive locking design for irregular clamping to achieve various heights requiring a positive pressure stop. Adjustable to fit height irregularities of milling operations. Available in either a smooth radius head or a hardened tool steel serrated gripping surface. Elevates vertically, with no rotation. The outer diameter of the bushing ground for press-fit. Features, Benefits, & Product Specifications:Bushing: Low Carbon Steel, Case Hardened 74-77 R30NRadius Stem: Low Carbon Steel, Case HardenedSerrated Stem 4140 Alloy Steel, RC 45-48Finish: All components are Black Oxidized