Self-Tightening. The Super Clamp for the tough jobs. Ultra-wide gripping surface. Grabs 4¼" of metal. Original wedge. Original straight cut tooth design.

Gripping Surface: 4¼" wide (108 mm), 1" deep (25 mm)
Overall Length: 9½" (241 mm)
Weight: 11 lbs (4.99 kg)
Capacity: 6 tons (5,443 kg)

Replacement Parts: #5120 Nut & Bolt, #9801 Wedge
Heat Treated Steel. Made in the U.S.A.