THE CRB7 – 7 FUNCTIONS - 1 ROUTER JIG FITS ALL ROUTERS*  M.POWER Tools Combination Router Base is truly unique amongst router jigs: It's 7 core functions takes the average router to a different level of performance. Confirming it as the most versatile power tool money can buy. With no additional accessories needed the CRB7 functions are: Adjustable Dado-ing/trenching, Adjustable Mortising, Anti Tilt Support, Precision Small Circle Compass, Off Set Edge Routing and Faux Panel Dado Copier. The CRB increases overall routing stability, improves accuracy and quality of finish of every routing pass. The CRB7 fits ALL routers that have edge guide/side fence rod drillings in their bases* – It is quick change, no screws or drivers required, it literally slides on and off the router reducing set up time to almost nothing.