WS8 Shop ViseHeavy duty 30,000 PSI casting for strength and durability. Replaceable top jaws and built-in pipe jaws. 360° swivel base with double lockdown for quick and easy positioning. Designed for general duty applications. Built-in pipe jaws handle various pipe sizes. Rubber pinch point safety guards. Large anvil work surface. Base Type: Swivel; Jaw Material: Hardened Steel; Jaw Opening: 8 in; Jaw Width: 8 in; Locking Type: Threaded; Material: Cast Iron; Pipe Jaw Capacity: 3/4 in [Min], 3 in [Max]; Throat Depth: 4 in; Weight: 71 lb.