From the Manufacturer
Carbide tipped double flute templet / trimming bit is a micrograin bit that provides smooth cuts for laminate trimming, cutouts and pattern cutting. It can be used with two ball bearings to widen the bearing surface and reduce template wear
Product Description
Ball bearing pilot trim bit. For laminate trimming, cutouts, and pattern cutting. Can be used with 2 ball bearings to widen bearing surface and reduce template wear. Cut diameter 1/2'', flute length 1 1/2'', shank diameter 1/2'', shank length 1 5/8'', overall length 4 7/16''. .