This locking clamp fastens directly to the drill press slot for quick, easy operation. Easily secure workpieces tightly that other clamps simply cant handle. The clamp features a 2" maximum jaw opening and a 3" throat depth to accommodate a variety of tasks. Finish Nickel Plated Maximum opening (in.) 2-3/4 in. Pack quantity 1 Jaw Width (in.) 2 in. Throat depth (in.) 3 in. Wrench length (in.) 9 in.