Mo-Clamp 0305 Dyna-Mo Jr Clamp (3-Ton Capacity). New generation of Mo-Clamps. Self-tightening. Thin-edged nose for getting into hard-to-reach places. Drop-forged round wedge to keep twist out of chain, aggressive cross-hatch tooth design, spring-loaded for easy opening. Specifications: Gripping surface - 1-1/4" wide x 1" deep, Overall length - 7", Capacity - 3-tons.