120 Series

Tool 120m040A

Heavy profiling cuts on hardened steel generate heat that breaks down uncoated carbide edges.

Ball nose geometry at 4" cutting diameter follows contoured surfaces without leaving flat-bottomed transitions.
The TiAlSiN coating on this 4-inch diameter version extends tool life in high-temperature applications where heat buildup would otherwise cause premature wear.
The aluminum content in the coating maintains hardness at elevated cutting temperatures.
Three flutes provide the chip evacuation needed for deep profiling passes while maintaining sufficient cutting edge engagement on curved surfaces.
The rounded tip produces smooth transitions on contoured surfaces and eliminates the flat-bottomed steps that occur with square end mills in 3D machining operations.