Grades for Applications and Materials - ISO K

Application	Grades			ISO K 15 - 20 Cast Iron
TAPPING		ISO	K20-K40	Harder Tougher	HENI
		Coatiing Layers
		Recommended Application	Recommended surface treatment for machining hard wear/abrasive materials such as grey cast iron, aluminum alloys with high silicon percentage (more than 10%)

  HSS