Jet 320312-4″ Sg Iron Bench Vise-Super Heavy Duty

Strongest cast vise on the market Massive castings made of superior quality 80,000 PSI tensile strength SG iron for maximum strength and impact resistance Spheroidal graphite (SG) iron forms a much stronger molecular structure than regular cast iron Up to 30-Percent higher tensile strength than competing ductile iron vises Precision machined hardened steel jaws Polished ACME threaded screw for smooth operation and maximum strength Sliding beam is accurately machined on all sides for smooth operation Enclosed at the back to protect screw from dirt and debris Shot blast finish powder coat paint for protection from corrosion Optional 360-Degree swivel base with dual lock down handles