These inserts are for use with the Veritas base plate/table insert (or our 1 3/4" counterbore insert used in our router table), or with any base plate with a 1 1/2" through bore and a 1 3/4" counterbore. They reduce the size of the through bore and support stock next to the bit, minimizing kickback and splintering. Made from solid brass, the inserts attach with the threaded ring nut. Only one ring nut is necessary, regardless of the number of inserts you purchase.
Available individually or as a set of seven inserts and one brass ring nut. The sizes given are the inside diameter.