WMTR400M4PPC-WU10PT AKA 4170175, 581-108-13  is a 4mm .158″ FNR (Full Nose Radius) Precision Ground With Chip Breaker, WMT-PC Plunge & Contour Insert. This fits Size 4 toolholders.  This insert can be used in P,M,K,N,S, and H material groups.

This is a Hard coated insert for wear resistance. This grade is not for heavy interrupted cuts. .004-.010″ipr, .040-.100″doc.

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