KYOCERA Indexable Cut-Off Insert, 1-Cutting Edge Metric Positive Rake, Series: KTKB, TKN Insert, #3 Insert, 3.1 mm Cutting Width, P Chipbreaker, 0.25 mm Corner Radius, Manufacturer's Grade: CR9025, ANSI Code: TKN3PCR9025, ISO Code: TKN3-P, Neutral Hand of Insert, Carbide, CVD-TiCN/TiN Coated, Material Grade: P