200 Series

Tool 200i313L015C

Aluminum work at smaller diameters means higher spindle speeds and more heat per unit of tool volume. The combination tends to accelerate built-up edge formation, especially when chip evacuation gets compromised in tighter spaces.

This 0.3125" diameter end mill uses three flutes to distribute cutting load while maintaining feed rates that keep chips moving.
The geometry works because lower chip load per tooth reduces the contact time that leads to material adhesion.
TiB₂ coating adds wear resistance without the aluminum affinity issues you get with aluminum-titanium coatings.
The R0.015" corner radius strengthens the cutting edge compared to sharp corners while still maintaining clean entry characteristics.
Designed for aluminum, copper, and plastics where built-up edge control determines surface finish quality.