Tool 190i750M030A

Hardened steel finishing demands balance between surface quality and tool life. The 190i750M060A delivers both through controlled geometry and coating selection.

Nine flutes spread cutting forces across multiple edges while maintaining light chip loads per tooth.
The R0.06" corner radius strengthens each cutting edge against the abrasive nature of hardened steels and titanium alloys.
TiAlSiN coating provides the thermal barrier needed when heat generation exceeds evacuation capability at these flute counts.
This geometry requires high spindle speeds and rigid workholding.
The light engagement per tooth produces the surface finish but demands consistent feed rates.
Works in steels above 45 HRC, titanium grades, and nickel-based superalloys where conventional roughing tools leave poor finishes.
Not intended for slotting or heavy material removal.