2 Flute Long Neck Rib Processing Carbide End Mills 68HRC
2 Flute Long Neck Rib Processing Carbide End Milling Cutters Ultra Micro Grain Carbide TiAlN F-NaNo Blue Coated for General Use on High Hardness Materials up to 65-68HRC, performs well on Heat Resistant and Steel Alloys 30-45HRC, Pre-hardened, Hardened Steel 45-55HRC, High Hardened Steel 55-68HRC. Also suitable for Copper.