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> New 50 kennametal tpu 221 KC990 carbide inserts M751S
New 50 kennametal tpu 221 KC990 carbide inserts M751S
'Composition: A multilayered alumina coated grade with a high-strength substrate. Coated with TiCN and then alternating layers of Al2O3 and TiN. Application: Engineered for finishing of carbon and alloy steels, and ductile, nodular, or malleable irons. The thin alumina coating layers are very hard. Best speed range is above 650 sfm in smooth cuts
