The Draper Quick Action Clamps are durable and reliable clamps for almost any job This Draper Quick Action Clamp is Heavy-duty and suitable for general applications. The Draper Quick Action Clamp is made up of Malleable cast iron jaws with a plated carbon steel bar, screw and swivel shoe with a plastic cover. Display packed. Features: Malleable cast iron jaws Plated carbon steel bar Screw and swivel shoe with plastic cover Specification: Capacity: 500mm Clamp pressure: 400Kg Throat: 120mm