Solid Carbide Endmills Solid Carbide Endmills H680 Series for Hardened steel, up to HRC 65 (High Precision Cutting) Ultra grain carbide rods with better abrasion resistance. Use SICO-TH coating with anti-high temperature & anti-oxidation. Special geometry design, suitable for high hardened working materials. Comparable to Europe, America, Japan’s tolerance with high precision and high performance on Finishing working situation. /RQJ7RROOLIHWRROVUHGXFHWRROFRVWVDQGZRUNLQJFRVWHႇHFWLYHO\ Features ʬHigh Precision ʬHigh Speed ʬHigh Hardness SA015