Twin Clamps are designed specifically for assembly projects but can also be used as a basic straight edge clamp * One clamp faces down to hold your work table, the other clamp faces up to hold your project * Pairs of Twin Clamps simplify assemblies and hold work pieces for planing or sanding * Raised T-track accepts A, Twin, and Ultra series Saw Plate, Router Plate and Stop Block but will not work with Contractor series accessories * Nylon jaws hold work piece securely and are predrilled for accessory Wide Jaws and Tall Jaws