KYOCERA TBR40004 ISOI 2-Cutting Edge Indexable Turning Insert With 1-Sided Chipbreaker, Hole and 40 to 60 deg Countersink, ANSI Code: DCMT32505APDKPD001, DCMT Insert, Material Grade: N, S, #32505 Insert, Diamond Shape, 11 Seat, Positive Rake, PCD