240 Series

Tool 240i625C

Aluminum swarf turns into welded mess when heat builds up in the cut. The open helix geometry on this 0.625" diameter end mill moves chips out before they can re-cut and generate the heat that causes built-up edge formation.

The TiB₂ coating adds a thermal barrier that keeps cutting temperatures down during the aggressive feed rates that aluminum HSM demands.
Two flutes provide maximum chip evacuation while the R0.004" corner radius strengthens the cutting edge against the micro-chipping that occurs when interrupted cuts meet high traverse speeds.
This geometry works best in aluminum, copper, and plastics where material removal rate is limited by chip evacuation rather than cutting forces.
The 0.605" neck diameter maintains rigidity while providing clearance for deeper wall work.