TurnMaster Excelsior French curve / inside cutter RSTM-GT4

Titanium Nitride (TiN) Plasma Bonded Coating french curve inside cutter. TiN is bonded onto quality HSS. It provides the same advantages as HSS whilst enhancing the cutting life close to that of tungsten carbide. Use the same traditional sharpening equipment used for HSS. Sharpens to 0.12-0.2 microns. Harness of coating up to 85RC. Material is Titanium Nitride on M2 HSS. Better used for internal shaping and finishing. Can be sharpening using modern sharpening machines such as ProEdge and bench grinders.