100 Series

Tool 100i250M030A

Quarter-inch jobs in steel often mean high spindle speeds and tight tolerances. The 100i250M030A handles both without the chatter that kills precision work.

Four flutes keep chip load consistent even when you're pushing feed rates in steel and iron.
That consistency matters more in smaller diameters where any variation shows up immediately in surface finish.
The R0.03" corner radius takes the stress concentration off the cutting edge.
Less chance of microchipping when you're running fast in harder materials.
TiAlSiN coating adds heat resistance without building up thickness that would dull the edge geometry.
In titanium and nickel alloys where heat buildup kills tools, that extra thermal barrier keeps the carbide substrate stable longer.
The coating stays put during interrupted cuts and side milling operations where other coatings tend to flake.