Sandvik Coromant Turning Insert, Series: CoroTurn 107, DCGW Insert, 2(1.5)1 Insert, Diamond, 0.4 mm Maximum Depth of Cut, 1/4 in Inscribed Circle, 0.0937 in Thickness, 07 Seat, Positive Rake, UM Chipbreaker, 0.016 in Corner Radius, 0.1102 in Hole Dia, Manufacturers Grade: 7525, ANSI Code: DCGW2(1.5)1T0320F 7525, ISO Code: DCGW070204T01020F 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