Features: Locking C-clamps open wide to hold work within their C-shaped frame, which provides space for workpieces of various shapes and sizes. Also known as face clamps, they keep their clamping pads aligned on each side of the workpiece to apply uniform pressure. They grip tapered or thin materials, join edges to ends in face frames, and reach around rolled edges, I-beam lips, angle iron bends, and other barriers. Max. Opening / 2 inch Throat Depth / 1 1/8 inch Clamping Force / 500 lb Nominal Clamp Size / 6 inch Number of Pieces / 1 Swivel Pad / Yes Tether Style / Tether Capable Overall Clamp Length / 7 5/8 inch Finish / Nickel Plated Material / Steel Locking Mechanism / Release Lever Screw Mechanism / Adjusts Clamping Pressure Jaw Width / 3/4 inch Standards / ASME B107.36-2002