4 Flute Solid Carbide Flat End Mill with Blue Nano Coating for Hardened Steel Machining

4 Flute Solid Carbide Flat End Mill with Blue Nano Coating for Hardened Steel Machining. HRC60 Hard Material Machining: Designed for hardened steel, quenched steel, and tool steel up to HRC60. Blue Nano Coating: Provides excellent wear resistance, heat resistance, and extended tool life. 4 Flute High-Efficiency Design: Balanced cutting forces with efficient material removal for slot and face milling. ISO 9001 Certified Quality: Strict quality control ensures tools meet international standards and customer expectations. OEM and Logo Services: Laser engraving available for logos and tool specifications on the shank. Global Shipping Support: Cooperates with DHL, FedEx, UPS, TNT, and EMS for worldwide delivery.