• Lightweight strength for gluing, framing, pattern-making, wood-working projects
• Spring-loaded quick-release clutch mechanism lets you make fast length-adjustments;
• Cast-iron jaws with baked enamel finish; hardened-steel screw fine-threaded for smooth precision
• Anodized aluminum-tube rail 1-1/4" x 3/4"; 1" on-center notched lock-points
• Maximum jaw-opening 46", 1-3/4" throat-depth; overall length 50", 2.6 lbs

An essential effort-leveraging tool for every professional serious do-it-yourselfer work shop; excellent strength/weight ratio. One-year warranty and Jack's Tool Shed worry-free Satisfaction Guarantee.