High precission 2Flute Keyway milling cutter with

HSS end mill is a rotary cutting tool with helical flutes and cutting edges on the periphery and bottom. Made from tungsten-molybdenum steel (e.g., M2) or cobalt-enhanced grades (M35/M42) for higher heat resistance.

Key benefits: high toughness (resists chipping), cost-effective, and re-sharpenable. Suitable for steel, aluminum, cast iron, and plastics.

Common types: 2-flute (for aluminum, better chip removal) and 4-flute (for steel, stronger). Coatings like TiN or TiAlN improve wear resistance.

HSS end mills run at lower speeds than carbide tools but offer excellent durability in interrupted cuts and less rigid setups. Ideal for general-purpose milling.