Seco Secomax™ Turning Insert, RNGN Insert, 060300 Insert, Round, 2.9 mm Maximum Depth of Cut, 6.35 mm Inscribed Circle, 3.18 mm Thickness, 06 Seat, Manufacturer's Grade: CH2540, ANSI Code: RNGN22S-00625 CH2540, ISO Code: RNGN060300S-01525 CH2540, 0 deg Relief Angle, PCBN, PVD-TiSiN Coated, Material Grade: H, For Use On: Hard Materials