The Porter-Cable 42690 is an easy-to-use and accurate edge guide for Porter-Cable routers; designed for models 100, 690, 691, 693, 891, 892, and 893. This durable router accessory is built with an anodized, extruded aluminum body for extra strength and dual sliding, lockable mounts to allow for easy operation. Mounting hardware is included. This edge guide replaces obsolete item 42700.