This Trend 46/44 Rebater includes different size bearings for a choice of rebates, they provide easy set up and, accurate, depth of cut.This set is ideal for rebating straight and shaped work pieces, particularly with delicate applications such as musical instrument production when a small rebate is required for insertion of purfling. Specifications: Tooling TCT.1/4in Shank. By changing the bearing, the size of the rebate can be altered, It is supplied with 3 bearings.22.0 mm bearing gives rebate of 1 mm.19 mm bearing gives rebate of 2.5 mm.16 mm bearing gives rebate of 4 mm.D = 24 mm.C = 12.7 mm.