02025 Tab-Loc™ 4 Piece Insert Ring Set

02025 Tab-Loc™ 4 Piece Insert Ring Set4 Piece Tab-Loc™ Multiple Size Inserts Rings. Featuring JessEm's innovative Tab-Loc™ design, these insert rings lock in place with a quarter turn of the ring. Made of glass filled polycarbonate, their tough enough to endure day to day use and can be easily machined with your router bit.