GearWrench Bench Vise GWBVA4 4 Inch Jaw Width Cast Iron Anvil Clamp (30000 PSI 360 Swivel Base Pipe Jaws Automotive Metal Fabrication Shaping) Chalk Boxes delivering an instant bite that delivering an instant bite that breaks stubborn thread seals without rounding off fittings 800 RPM Voltage – Single Phase 120V 127V 139V 240V 254V 277V Voltage – Three Phase 208V 220V 240V 416V 440V 480V Amperage – 3 Phase 208V 1 Molten Orange Powder Coating: Premium electrostatic finish resists automotive grease 000 PSI Cast Iron Casting: Heavy duty iron body absorbs severe mechanical clamping pressures and percussive hammer strikes without cracking