6mm Carbide Fiberglass Router With Burr Style End Cut, 19mm LOC, 6mm Shank, 63mm OAL, D1 - PVD Diamond Coated 19mm LOC,6mm Shank,63mm OAL FR Series: Fiberglass Routers with various end styles for a wide material range. Plain, Burr, End Mill, Drill point, and Fish Tail end features. Proprietary cemented carbide grade with 3 different SmoothCoat coatings. Use UnCoated for general purpose routing. Use A1 (TiB2) coated for titanium, aluminum & other non-ferrous. Use Hard thick D2 CVD diamond coating for long-run jobs or thin smooth D1 PVD diamond coating in plastics, woods, composites, CFRP?s, honeycombs & other abrasive materials. Round Tool Laboratories USA Part #32108D1