The Big Horn 19672 1-35/64 Inch Brass Router Template Guide is a precision-machined accessory designed to guide your router with controlled movement along templates or pattern edges. It mounts securely to the router base and maintains a fixed offset from the template, allowing for clean and accurate shaping of the workpiece. Ideal for routers with a 1-3/16” base plate opening, this guide is well-suited for stair routing, hinge mortising, pattern routing, and other detailed template operations, including 5/8" radius hinge mortises when used with a 1/2" router bit. The guide is manufactured from solid brass to deliver reliable durability and precision through repeated use. Compatible with Porter Cable-style subbases with a 1-3/16" center opening and matches the dimensions of the Porter Cable 42048 Template Guide for seamless Compatible with models from Bosch, Metabo, Milwaukee, DeWalt, and other leading brands.