KYOCERA Cera-Notch KCGP4250LPR1215 Double Edged Grooving Insert, ANSI Code: KCGP4250L PR1215, KCGP Insert, 4250 Insert, Left Hand Cutting, 0.453 in H x 1/4 in W Cutting, Manufacturer's Grade: PR1215, PVD-MEGACOAT Coated, Material Grade: K, M, P