EVOLUTION PILOT DRILL LONG FOR CORE CUTTERS
Higher RC rating without brittleness means more holes drilled per pass.
Evolution endmills are guaranteed to outperform other endmills made of HSS, Cobalt or Tini coated.
This is so because Evolution endmills are made from Premium Routers.
This is because Evolution Premium endmills are heat-treated to 68 RC compared to Cobalt endmills to 66 RC and other brands' HSS endmills to 64RC.
This makes them much better than other endmills.
This makes them much harder than other brands of endmills.
The Tini coating increases the manufacturing cost of the end mill, but only improves appearance and not performance.