200 Series

Tool 200i156M010C

Aluminum punishes small cutters hardest. Heat buildup happens faster when there's less mass to absorb it, and chip evacuation gets critical when there's nowhere for material to go. Get the geometry wrong on a 5/32" end mill and you'll see built-up edge within passes.

The 200i156M010C runs TiB₂ coating over a 3-flute aluminum-specific geometry.
TiB₂ stays chemically inert with aluminum while adding lubricity.
That combination prevents the adhesion that starts built-up edge formation.
Three flutes distribute cutting load while the high helix angle moves chips out before they can weld to the tool face.
The R0.01" corner radius strengthens the cutting edge without compromising surface finish.
Small radius, but enough to prevent the micro-chipping that kills small end mills in aluminum, copper, and plastics.