These mecahnic's vices are comprised of a close grained cast grey iron body and sliding jaw which are machined on all friction surfaces for a smooth action. Fitted with a steel handle and main screw. Record IRWIN Mechanic's Vices are the most popular and widely used general purpose vice for light to medium-duty applications. Features and Benefits Unbreakable nut ensures a smooth clamping action Fitted with steel handle and main screw Jaws are manufactured from hardened steel for durability Body is constructed from cast iron making for a highly robust product Available in a range of sizes and specifications to suit your needs Typical Applications Workshops Garages Carpentry