100 Series

Tool 100i375M015A

Steel work puts heat into the cutting edge faster than most materials can pull it out. The 100i375M015A addresses this with TiAlSiN coating. A hard aluminum layer that acts as a thermal barrier between the carbide substrate and the workpiece.

Four flutes keep chip load consistent across the 0.375" diameter.
When you're profiling or slotting in steel and iron, that load distribution prevents any single flute from taking excessive heat cycles.
The R0.015" corner radius strengthens the cutting edge where it meets the workpiece, reducing the stress concentration that leads to chipping in interrupted cuts.
TiAlSiN performs particularly well in titanium and nickel alloys where generated heat would otherwise break down uncoated carbide.
The coating maintains hardness at temperatures where standard end mills begin to soften and wear rapidly.