Hardened steels long neck square carbide end mills cutter
Wholesale Custom Hardened Steels Long Neck Square Carbide End Mill is engineered for precision machining of hardened materials up to HRC 55–65. Made from ultra-fine grain solid carbide, it offers excellent hardness, thermal stability, and wear resistance.The long-neck design enables deep-cavity access and narrow-slot machining while maintaining rigidity and reducing vibration. Its square-end geometry ensures sharp corners, stable cutting edges, and high dimensional accuracy. Spiral flutes enhance chip evacuation and machining smoothness under tough conditions.Optional advanced coatings improve heat resistance and tool life. Fully customizable in diameter, neck length, flute count, helix angle, and coating, it is ideal for molds, precision parts, and CNC production.