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Cutting Tool Cnmg Cemented Carbide Alloy Inserts Cnmg643 Cnmg190612. Ultra-High Hardness: Hardness exceeds HRA 90, offering 3-10 times longer service life than traditional tools. Versatile Application: Supports turning, milling, threading, and grooving for steel, cast iron, and alloys. Customizable Options: Customizable grade, coating, chip-breaker, nose radius, hardness, color, and application. Global Logistics: Delivers to 200+ countries via SF, FedEx, UPS, DHL with 3-7 day key route delivery. Low MOQ: Minimum Order Quantity is just 1 piece, allowing flexible trial orders. ISO Certified: Complies with ISO 9001:2008, ISO 9001:2000, ANSI, and JIS international standards.