Trend Trade Radius Router Cutters TR21X1/4TC - 5mm Radius x 18mm Cut Key Features: For edge coves and fluting Features 2mm micrograin Tungsten Carbide tips, for cutting the most abrasive materials to give extra long life PTFE coated, indicated by distinctive black colouring Can be used on hardwood & softwood, fibreboard, plywood and particle board Etched dimensions on extra long 40mm shanks, for quick identification Specification:​ C: 18 mm (metric cut length) R: 5 mm (metric radius) OL: 63 mm (overall length) Shank Diameter: 1/4 inch