What You Get:1 *35mm Hinge Boring Jig,1 * Cutting head.1 * Bit Positioner(Do not put the drill bit through the blue positioner directly,firstly use the postitioner dividually to mark the place with pen ,then use the drill to make holes. Premium Quality:The Hinge Drilling Jig is made of high quality steel ,Perfect for standard 35mm concealed hinges,Especially designed to drill a hole on the door or desk gently and efficiently.< /p> Jig Drill Guide Set:The 35mm Jig can be adjusted for changes of door edge ,remove the dirty and debris quickly.This drill set is perfect for concealed hidden hinges. Easy to Use :Working efficiently for drills,You have no need to be a skiller to install these hinges ,Perfect for anyone who wants to do hinges in home or other places. Widely Applicationer:Perfect for door locks,mounting plates ,woodworking hole and other projects.A good helper for home DIY in woodworking.