Grizzly H7790 Trim Router Metal Body This trim router is supplied with a 1/4-Inch collet for use with 1/4-Inch shank router bits it will accept router bits up to a 1-1/8-Inch diameter I It will accept router bits up to a 1-1/8-Inch diameter Includes micro adjustable guide bearing fence 3/8-Inch guide bushing and collet wrenches