This MagnaLOCK ring features a 1-3/16in inside diameter with a shouldered recess to accept standard Porter-Cable style guide bushings and is designed to work with the Incra Clean Sweep System
Compatibility:
This ring will ONLY fit newer INCRA router plates and lifts that have a 3-5/8in opening through the plate. This ring is NOT compatible with grey Phenolic MagnaLOCK router plates or first-generation gold INCRA Mast-R-Lifts that have a 3-1/2in opening through the top plate.
WARNING: Cancer and Reproductive Harm—www.P65Warnings.ca.gov