Here is a perfectly flat, rigid and durable mounting solution for reliable use in any router table application. The insert dimensions of the Rout-R-Plate™ are the same size as our Mast-R-Lift™ and our Rout-R-Lift FX ™ and will also fit our model #03004 solid phenolic Mast-R-Top™ and our model #03005 high pressure double laminated MDF top. The Rout-R-Plate™ includes a convenient centerhole bushing used to align the router so it is centered in the bit hole. Simple step by step instruction make accurately drilling and mounting any router easy to accomplish. The plate centerhole is machined to accept a 3-1/2" raised panel bit and includes two additional insert rings. Additional insert ring sets are available separately.