Introducing the 35mm Concealed Hinge Jig Kit by POWERTEC. This concealed hinge jig kit offers a simple and accurate way to drill cup holes for concealed cabinet door hinges using just a drill. A must-have for anyone who wants to install or mount cabinet doors using concealed hinges, this cabinet jig tool makes the process easy and accurate, and perfect for woodworkers of all skill levels. The guide/bit assembly is spring loaded and locks into the base with indexing tabs and stop collar, so the holes you drill will be perfectly drilled. The jig also includes a carbide-tipped 35 mm drill bit that will drill the holes cleanly and smoothly, without chipping or breaking the wood. With its compact and ergonomic design, it is easy to store and use with any drill, with no special tools required. [How To Use]: 1, Determine the spacing required for your hinge 2, Remove the cutter/guide assembly from the base of the jig 3, Press up to remove the pins and replace them on the side of the jig needed 4, Align the pilot hole template correctly and clamp the jig to the cabinet side of the door 5, Drill 2- 1/16 in. holes using the pilot hole template 6, Place the guide/bit assembly in an electric drill with a 3/8 in. chuck and lock it into the base of the jig 7, Drill until the stop collar hits the drill guide, setting the proper depth.