Bar Clamp Set, Bar Type Drop Forged, Handle Style Sliding T, Clamping Capacity 4 in, 8 in, 12 in, Clamping Force 400 lb, 1,800 lb, Throat Depth 2 1/4 in, 4 3/4 in, 5 1/2 in, Jaw Pad Type Swivel, Sliding Mechanism Bar Slide, Bar Thickness 7/16 in, 1 in, Number of Clamps 4, Spindle Finish Black Oxide, Application Welding and Fabrication, Function Clamp, Handle Material Drop Forged Steel, Includes (1) Mfr. No. 86000, (1) Mfr. No. 86010, (1) Mfr. No. 86200, (1) Mfr. No. 86210