Using your router, create 3 in. and 3-1/2 in. hinge mortises on most door sizes with ease with the Milescraft Hinge Mate150 door hinge jig. Lightweight and easy to use door installation kit. Allows for accurate hinges all the time.. No bushings needed. Rotate template to achieve 5/8 in. radius and 1/4 in. radius. Durable tungsten carbide tipped 1/2 in. router bit included. Designed for the DIY'er. Lightweight and easy to use door hinge mortiser. Door hinge templates needed to rout hinge mortises, 3 in. and 3-1/2 in. sizes included. Steel template frame compatible with most door size