200 Series

Tool 200i375L030C

Built-up edge hits hardest on inside corners and slot walls where heat concentrates. You see it first as aluminum welding to the cutting edge, then as surface finish that looks like someone dragged sandpaper through the cut. Corner geometry matters more than most operators realize.

The 200i375L030C carries a 0.03" corner radius that distributes cutting forces over a larger contact area instead of concentrating stress at a sharp corner.
This reduces edge chipping and built-up edge formation where aluminum wants to stick most.
TiB₂ coating adds wear resistance for demanding roughing passes while maintaining the low friction aluminum requires - no aluminum pickup like you get with AlTiN.
Three flutes balance chip load per tooth against evacuation speed.
High helix angle keeps chips moving before they can reweld to the work or tool.