100R Series

Tool 100Rm030LA

Heavy cuts in hard materials generate heat that kills tools faster than wear. The 100Rm030LA handles this with TiAlSiN coating that forms a protective aluminum oxide layer at cutting temperatures, keeping heat in the chip instead of the carbide substrate.

This is a 3" diameter rougher with chipbreaker geometry that segments chips before they pack the flutes or drag heat back through the cut.
The 0.1" chamfer distributes cutting forces across more carbide than a sharp corner, extending tool life when you're pushing feed rates in steel, iron, titanium, and nickel alloys.
Four flutes balance material removal rate with chip evacuation space.
The coating extends tool life in applications where uncoated carbide would fail from thermal stress.
You'll still need a finisher afterward.
This leaves stepover marks and tool signatures.
That's expected behavior, not a problem.