This IRWIN Record Multipurpose Vice is strong and durable, the body and sliding jaw are cast from close-grained grey iron which is machined on all friction surfaces for a smooth reliable action. The jaws, handle and main screw are steel, the latter having a two-start rolled acme thread to speed the jaws from fully closed to fully open with a minimum of winding.  This compact bench vice with anvil is specifically designed for medium-duty workshop applications for both the professional craftsman and the DIY enthusiast who expect a compact vice with superior clamping force, safety features and excellent finish. Jaw width: 120mm (5in).Throat depth: 70mm (3in).Swivel base:  Additional Information:• Jaw Width (mm): 125• Jaw Width (in): 5