Wilton 8-1/2-in Brute Force 31250-lb C-Clamp

8-1/2-in Brute Force 31250-lb C-Clamp. Clamping force ranging up to 31,250 pounds. Black oxide coated spindle resists corrosion. Square spindle head stands up to heavy wrench tightening use, including both hand and torque wrench. Full-length spindle is machined from a single piece of square, cold drawn steel, hardened and tempered. Ideal for heavy construction, bridge building, heavy fabrication, and ship building. Backed by Wilton's industry-leading lifetime warranty against manufacturing defects