100 Series

Tool 100i250X015A

Quarter-inch end mills take a beating in production runs. They're small enough to deflect under load but expected to hold tolerance through hundreds of parts. The 100i250X015A handles this contradiction by distributing cutting forces across four flutes while the TiAlSiN coating extends tool life in the heat-generating cuts that typically kill smaller end mills.

The R0.015" corner radius strengthens the cutting edge where stress concentrates most.
In profiling operations on steel and iron, that small radius prevents the microchipping that starts as tiny edge failures and grows into premature tool replacement.
Four flutes keep chip load per tooth manageable even at higher feed rates, while the coating's aluminum content forms a protective oxide layer at cutting temperatures.
Works in steel, iron, titanium, and nickel alloys where consistent surface finish matters more than maximum metal removal rates.