To produce grooves for the insertion of coloured or natural wood inlay. Supplied with three bearings to allow different depths of cut. Alternative bearings available. Designed for routing corian, which is used in many bathrooms & kitchens. specification:. D=22.2mm. C=12.7mm. B=12.7mm 16mm 19mm. Shank diameter=1/2 inch. alternatives::. Trend face inlay 22.2mm dia tr_34/91x 12mmtc. spare parts::. Trend bearing 3/4 dia x 1/4 bore tr_b 19. Trend bearing 5/8 dia x 1/4 bore tr_b 16. Trend bearing 1/2 dia x 1/4 bore tr_b 127. Trend spare part pack for nf 10 screw tr_sp-e.