This coating is extremely heatresistant and can be used with or without coolant.
Made from M42 Cobalt Material135° Split PointType JNAS 907ALTiN CoatedFractional SizesALTIN Coating: A high performance coating for milling stainlesssteels, carbon steels, alloy steels, and cast iron.1/4 Jobber Length Drill Cobalt ALTIN Coat 135 Deg Split Pt It is exceptional in difficultto machine materials where adhesive wear is particularly high.