
4 Flute Solid Carbide HRC60 Square End Mills Cutter for Hardened Steel. HRC60 Hardness Capability: Solid carbide construction with HRC60 hardness for cutting hardened steel and titanium alloy. Bronze Nano Coating: Highly heat-resistant HELICA bronze coating improves high-speed processing and wear recognition. Customization Accepted: Customized size and tools provided according to client drawings and workpiece requirements. Smooth Wide Flute Design: Smooth and wide flute structure ensures easy chip removal and reduces friction coefficient. High Precision Control: Precision level of 0.005-0.01mm ensures accurate machining for mold and tool steel. Free Sample Available: Free samples provided upon client agreement to pay for shipping costs. 24-Hour Online Service: Immediate response to questions from clients or end-users to ensure satisfaction. 10% First Order Discount: New clients receive a 10% discount or USD50 coupon for orders over USD500.