Features:
• 60,000 PSI ductile iron casting.
• Wider jaws for increased clamping surface.
• Fully enclosed spindle and nut for greater life.
• Large anvil surface. 
• Replaceable jaws.
• 360° swivel base with double lockdowns.
• Made in U.S.A.
• Jaw Width: 5.5"
• Jaw Opening: 5"