1-3/8" Insert Ring (for Template Guide Bushing) – JessEm Tool Company
Kreg Precision Router Table Insert Plate with Level-Loc Rings (Predrilled for Bosch and Portor Cable) PRS4036 - The Home Depot
Router Table Insert Set [2610915125] for Bosch Power Tools | eReplacement Parts
3.8" 97mm Set of 4 Router Table Insert Ring Fits Sears Craftsman Ryobi Bosch etc | eBay
Amazon.com: SawStop RT-PIR 4 Pc Phenolic Insert Ring Set for Router Plates : Electronics
Model 3509-IR Insert Ring Set with Shoulder Pin | Rousseau Co.
WALFRONT 300mm x 235mm x 9.5mm DIY Router Table Insert Plate and Insert ring Woodworking, DIY Woodworking, DIY Router Table Insert Plate and Insert ring - Walmart.com