ICM: SUMOCHAM exchangeable DCN drill heads for stainless steel and high temperature alloys (ISO M Materials). The drill head features a T-land on the cutting edge, available in increments of 0.1 mm. Grade : IC908 A hard, fine grain substrate with excellent chipping resistance, combined with a new TiAlN PVD coating. Provides high wear and oxidation resistance. Recommended for a very wide range of materials applications and machining conditions. ISO Range - P/M/K: (P15-P30)(M20-M30)(K20-K40) ISO Range - H/S/N: (H10-H20)(S10-S25) Grade or Coating Type: PVD Coating Layers: TiAlN Grade : IC907 A tough sub-micron substrate, TiAlN PVD coated. Suitable for low-to-medium cutting speeds. Developed for machining of heat resistant alloys, austenitic stainless steel and hard steel. ISO Range - P/M/K: (P10-P30)(M05-M20)(K15-K30) ISO Range - H/S/N: (H05-H15)(S05-S20)(N05-N20) Grade or Coating Type: PVD Coating Layers: TiAlN+TiN