HTM Grade: (High-Temperature Milling)
The modified Aluminum Titanium Nitride coating (AlTiN), along with high hardness, provides thermal stability against oxidization, superior wear resistance, and allows faster speeds and feedrates.
HTHM Grade: (High-Temperature Hard Milling)
The inserts for the harder materials feature a nano-grain carbide substrate and nano-composite that combines the Aluminum Titanium Nitride coating with a Silicon Nitride bond (AlTiN + SiN). The coating combines very high hardness with high thermal stability against oxidization, up to 1200 degrees centigrade.