Super A coating has characteristics of excellent high-temperature hardness, abrasive wear resistance and oxidation resistance. It is extremely suitable for the CNC deep hole drilling, high-speed milling, dry machining, and hard machining materials such as Ti, Al, Ni, Mg alloys, stainless steels and cast irons. The No. 4 diamond-like carbon (DLC) coating is a thin layer of dry self-lubricant. When used with other types of coating, it can significantly increase the efficiency and service life of the cutting and molding tools.

HSS drill, D=6 mm, material: DIN 1.2379, ~800 N/mm2, emulsion cooling
Vc=35 m/min, n=1856 rpm, drilling depth=2.5xD=15 mm, fz=0.12 mm/rpm.