C-Clamp, Body Material: Alloy Steel, Duty Rating: Regular Duty, Anvil Shape: V-Grooved, Throat Shape: Standard, Body Color: Black, Max. Opening: 8", Throat Depth: 4-1/2", Clamping Pressure: 6900 lb., Min. Opening: 0", Swivel Pad: Yes, Spindle Finish: Black Oxide, Standards: OSHA Safety Color Standard #1910.144
From the Manufacturer
Drop Forged, Heat Treated Steel Frames, Black Oxide Coated Spindle & Swivel Pad to Resist Corrosion. 8" Capacity x 4-1/2" Throat Depth.