100R Series

Tool 100Rm030A

Heavy cuts in hardened steel generate heat that kills tools faster than wear. The 100Rm030A brings TiAlSiN coating to a 4-flute rougher geometry designed for materials that fight back. That coating acts as a thermal barrier, keeping cutting edge temperatures manageable when you're hogging out steel, iron, titanium, and nickel alloys at the parameters these materials demand.

The chipbreaker geometry still does the primary work.
Fracturing chips before they pack the flutes or conduct heat back into the tool.
The coating extends that capability into harder grades and faster removal rates.
Three-inch cutting diameter gives you the reach for larger cavities and deeper cuts where setup rigidity matters more than finesse.
The 0.1" chamfer strengthens the cutting edge against impact loads typical in roughing operations.
This isn't a finishing tool.
It clears material so your finisher can do clean work.