Milescraft Offset Base - Part of the 1223 RouterGuideKit - YouTube
Milescraft Circle Guide Kit | Router Accessories
Milescraft Router Parts & Attachments at Lowes.com
Milescraft 1219 Circle Guide Kit- Router Circle Cutter Jig For Cutting/Routing Small And Large Circles From 1.5in. Up To 52in. Diameter-Includes Bonus Offset Base For Edging Projects , Black - - Amazon.com