674 Utility ViseLarge anvil for shaping materials. Heavy duty 30,000 PSI casting for strength and durability. Replaceable steel serrated jaw inserts provide a firm grip. 180° swivel base with lockdown allows for quick and easy positioning. Built-in pipe jaws handle various pipe sizes. Base Type: Swivel; Jaw Material: Steel; Jaw Opening: 4 in; Jaw Width: 4 1/2 in; Locking Type: Threaded; Material: Ductile Iron; Pipe Jaw Capacity: 1/8 in [Min], 2 in [Max]; Throat Depth: 2 5/8 in; Weight: 19 lb.