A 4 flute 55HRC carbide endmill is designed for machining medium-to-hard materials like carbon steel, alloy steel, cast iron, and pre-hardened steel up to about 55 HRC hardness. The 4-flute geometry gives better rigidity and surface finish compared to 2-flute tools, especially in steel machining
Good choice for:
- Mild steel
- Alloy steel
- Tool steel up to 55HRC
- CNC milling and profiling
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