Kreg PRS3030 Precision Router Table Insert Plate
The Kreg PRS3030 Precision Router Table Insert Plate, a rugged 3/8" thick phenolic insert plate, was designed to work with nearly any router without the use of a "swiss-cheese" style pre-drilled surface.  It features an exclusive bottom-up mounting design for 100% level surface, 2" and 1-13/64" dual reducing rings, and compatability with standard guide bushings.