200 Series

Tool 200i375X015C

Built-up edge happens faster on smaller diameter cutters. More surface speed variation from center to edge, more heat concentration, more opportunity for aluminum to weld itself where you don't want it. The problem gets worse as you push feeds to stay productive.

This 3/8" diameter cutter addresses the heat issue through flute count and geometry.
Three flutes distribute the cutting load while maintaining reasonable chip thickness per tooth.
That balance matters more in smaller diameters where you can't just slow down.
The TiB₂ coating handles the demanding passes where uncoated tools start to grab.
TiB₂ stays harder at temperature and won't react with aluminum the way AlTiN does.
The 0.015" corner radius strengthens the cutting edge without compromising sharpness.
Prevents microchipping that leads to surface degradation in soft materials.