Description The Helixor HX-55 4mm 4-flute square solid carbide endmill is engineered for fine, high-precision machining of hardened steels. Manufactured from sub-micron tungsten carbide and hardened to 55 HRC, it maintains excellent rigidity and cutting control. The TiSiN coating improves heat resistance and tool longevity, while eccentric relief and variable pitch geometry minimize vibration for accurate results.
