100 Series

Tool 100i500X030A

Heat builds fast in steel at depth. The TiAlSiN coating on this half-inch end mill handles those thermal cycles without giving up edge sharpness. When you're pushing into alloy steel or working titanium where heat is the enemy, that aluminum content in the coating becomes your heat barrier.

Four flutes keep the load balanced across each revolution.
In heavier cuts on steel and iron, that distribution prevents any single edge from taking the brunt of the work.
The R0.03" corner radius adds edge strength without sacrificing surface finish.
Enough to resist chipping in interrupted cuts, not so much that you lose definition on sharp corners.
Consistent geometry run after run.
The coating stays put through temperature swings that would strip lesser treatments.
Steel, iron, titanium, nickel alloys all respond predictably to this combination of edge prep and surface treatment.