Bar Clamp, F-Style Sliding Arm, Opening (In.) 7 1/2 in, Throat Depth (In.) 4 3/4 in, Nominal Rail Size (In.) 1-3/16 x 19/32, Nominal Clamping Pressure 2,660 lb, Spindle Dia. (In.) 0.775, Pad Type Heavy Duty, Swivel Type Heavy Duty, Max. Jaw Opening (In.) 7 1/2 in, Bar Material Cold Drawn, Heat Treated, Tempered Alloy Steel, Handle Material Forged Steel, Heavy Duty, Maintenance, Welding, Assembly, Construction and General Purpose Clamping