Self-Tightening. The body-man's right arm. It grabs 2-1/4" (57 mm) of metal, making it ideal for hard pulls on heavy metal or frame.  Original wedge and straight cut tooth design.

• Gripping surface: 2-1/4" wide (57 mm), 1" deep (25 mm)
• Overall length: 9-1/2" (241 mm)
• Weight: 7 lbs (3.18 kg)
• Capacity: 6 tons (5,443 kg)
• Heat Treated Steel