Long Router Bits Cobalt Mill Machine Drills Lathe Steel Carving Tools 10mm 45 Degree Chamfer End Mill Carving Bits. Substrate: solid tungsten carbide, ground on CNC tool grinders with in-process measurement. Tolerance: h6 shank tolerance as standard. Coating: AlTiN, AlCr-based and TiSiN available, selected by workpiece material. Workpiece Materials: carbon steel, alloy steel, stainless steel, cast iron and hardened materials. Customization: non-standard chamfer end mills produced to drawing, minimum order quantity 5 pieces. Lead Time: samples within 7 to 15 working days, volume production within 30 days.