The four-in-one Multi-SOSS Hinge Template for doors is used for deep or shallow mortise cuts on both door and jamb. The two inside slide guides allow configuration for different pocket lengths. It comes with four different interchangeable router aluminum guides to accomodate hinge sizes for 216, 218, 220, 418. The two compression spring nails will hold the hinge template to the door or jamb while making the mortise cuts. This hinge template works on 1 ⅜” or 1¾” thick doors. 
The Multi-SOSS Hinge Template is a precision tool that saves time, minimizes costly errors and provides consistent, professional results.
The Multi-SOSS base is made from 3/4” 13 ply Russian Baltic Birch Plywood.
6/32 machine screws on the hinge guides are held by a metal insert into the wood base. ( U.S.A Patent; 4,553,336 )