4 Flute Solid Carbide Corner Radius End Mill, Extra Long Coated Bull Nose Milling Cutter HRC55

The HRC55 Solid Carbide 4 Flute Corner Radius End Mill is designed for high-performance CNC machining of hardened steel up to HRC55. Manufactured from premium solid carbide with advanced coating, it delivers excellent rigidity, wear resistance, and thermal stability for demanding machining environments.

The corner radius (bull nose) design improves cutting strength at the tool edge, significantly reducing chipping risk while enhancing tool life and machining stability. This makes it ideal for mold processing and high-precision contour machining where sharp corners are not required.

The 4-flute geometry ensures stable cutting performance, smooth surface finish, and improved feed rates during side milling and finishing operations. Its extra-long design allows deep cavity machining and extended reach applications.

This tool is widely used in mold manufacturing, precision engineering, and hardened steel component machining, especially where high surface quality and long tool life are required.