Wilton 14242 404, 400 Series C-Clamp, 0-Inch-4-1/4-Inch Jaw Opening, 3-1/4-Inch Throat Depth Industry-Feet's Top Choice For Maintenance, Production And Repair Operations Drop-Forged Steel Frame, Regular-Duty With Extra Deep-Throat Black Oxide Coated Spindles And Perma-Pad Resist Corrosion, And Are Replaceable