100 Series

Tool 100i250L015A

Quarter-inch end mills take a beating in production work. The 100i250L015A handles that reality with four flutes and a TiAlSiN coating designed for consistent performance across steel, iron, titanium, and nickel alloys.

The four-flute geometry spreads chip load evenly, which matters when you're running multiple parts per setup.
Even distribution means each cutting edge does its share of the work without overloading any single flute.
The TiAlSiN coating adds a thermal barrier that lets the tool maintain its edge geometry longer in the heat-affected zone common to these materials.
The 0.015" corner radius strengthens the cutting edge where stress concentrates.
In profiling and slotting operations, that small radius prevents chipping that typically starts at sharp corners under interrupted cuts.
The result is predictable tool life part after part.