Design for use with the Kreg Face Clamp? the patented Rocket? Jig is extremely portable and ideal for on-site projects. This mid-range pocket hole jig features the ability to center a screw in 1/2", 3/4", and 1-1/2" thick material. The Rocket ís two hardened steel drill guides feature a lifetime warranty and are spaced at 7/8" on-center to accomodate todayís most common rail widths. Perfect tool for use in a variety of applications such as building cabinets, entertainment centers, decks, stairs, window and door extensions, and repairs. Kit includes Standard Face Clamp, step drill bit, 6"-#2 square drive bit, starter pack of 1-1/4" fine thread self-tapping screws, depth collar to set drilling depth, and allen wrench