KYOCERA Indexable Drilling Insert, 3-Cutting Edge Positive Rake, Series: SD Series, TCMT Insert, #12122 Insert, Triangular Shape, 0.1563 in Inscribed Circle, 0.0626 in Thickness, HP Chipbreaker, 0.0315 in Corner Radius, 0.091 in Diameter Hole, Manufacturer's Grade: CA6535, 60 deg Included Angle, ANSI Code: TCMT12122HPCA6535, Right Hand of Insert, ISO Code: TCMT12122HP, For Use On: Stainless Steel and Heat-Resistant Alloy, Carbide, CVD-TiCN/Al2O3/TiN Coated, Material Grade: M, S