Circle Dremel Router Attachment

This is a circle attachment for the Stew Mac Dremel router base for cutting guitar rosettes and sound holes. It requires a 3/16 pin with a 3/16" diameter flat head screw, washer, and nut.

A link to the router base can be found here:
http://www.stewmac.com/Luthier_Tools/Tools_by_Job/Inlay_and_Pearl_Cutting/Precision_Router_Base/Precision_Router_Base.html