Sandvik Coromant Turning Insert, Series: CoroTurn 107, DCGW Insert, 3(2.5)1 Insert, Diamond, 0.4 mm Maximum Depth of Cut, 3/8 in Inscribed Circle, 0.1562 in Thickness, 11 Seat, Positive Rake, NGP Chipbreaker, 0.016 in Corner Radius, 0.1732 in Hole Dia, Manufacturers Grade: 7525, ANSI Code: DCWG3(2.5)1T0320F 7525, ISO Code: DCGW11T304T01020F 7525, 55 deg Included Angle, 7 deg Relief Angle, Neutral Cutting, Carbide, TiN, Material Grade: H, K, For Use On: Hardened Steel and Cast Iron