Bench-clamping jig with strong, nylon body and hardened steel drill guides. Drills pocket holes quickly with rotating plate for 4 preset settings in different thicknesses of wood. Built-in quick clamp and depth collar measure on side of jig for easy drill-depth guide. Settings for use with 12mm (1/2") , 25mm (1") , 38mm (1-1/2") and 50mm (2") pieces. Includes step drill bit, square drive, collar and hex key, storage box and starter kit.