Tool 190i375L004A

Nine flutes means committing to surface finish over material removal rates. The 190 Series handles finishing passes in steels, irons, titanium, and nickel alloys where dimensional accuracy and surface quality matter most.

At 0.375" diameter with nine flutes, each tooth engagement is minimal.
That light chip load is what delivers the finish quality, but it demands high spindle speeds and a setup with zero chatter potential.
The TiAlSiN coating adds thermal barrier protection when working harder alloys like titanium and nickel-based materials where heat buildup degrades edge life.
The R0.03" corner radius strengthens the cutting edge compared to sharp corners while maintaining crisp part features.
Expect longer tool life in interrupted cuts and better edge retention through multiple parts.
Not suitable for roughing operations or heavy material removal.