Router plate for Craftsman router

[Jeff Cord]

I will be looking to add a router plate to an extension table and am wondering what hole pattern I need (I haven't found a plate that matches a "Craftsman" router).
My model has a 315 prefix which appears to be a Ryobi manfacturer.
Is there a particular Ryobi model that I should be comparing my router with?
Jeff

[Anthony Anderson]

Jeff, I had to drill my pattern in the router table insert plate that I bought. Make a template of the base of your router with the opening and screw hole locations. Center and transfer to the plate, drill and countersink the holes. Instructions will come with the inserts. Make sure to mount the router on the plate in a position that will make accessing the controls easy, once the rounter is in the table. Some places offer plates for specific routers, or a premade template to take the guess work out of it. HTH, Bill

[Lee DeRaud]

Is there a particular Ryobi model that I should be comparing my router with?The Ryobi R1801/R1802 hole pattern matches my (much older) Craftsman 315-275100, if that helps.