The Wilton Hargrave C-Clamp features a v grooved anvil to allow materials to be securely held, including round, square and flat pieces. The clamp also features a patented frame geometry design to allow for maximum strength and greater throat depth. The clamp is ideal for steel fabrication, industrial maintenance, production and repair operations. ADDITIONAL SPECIFICATIONS: Nominal Opening Capacity: 0 - 4"; Throat Depth: 2-3/4"; Clamp Pressure: 6200 lb.; Spindle Size: 3/4"