Sandvik Coromant Turning Insert, Series: CoroTurn 107, TCMT Insert, 220 Insert, Triangular, 1.7 mm Maximum Depth of Cut, 1/4 in Inscribed Circle, 1/8 in Thickness, 11 Seat, Positive Rake, PF Chipbreaker, 0.008 in Corner Radius, 0.1102 in Hole Dia, Manufacturers Grade: 4325, ANSI Code: TCMT 220-PF 4325, ISO Code: TCMT 11 03 02-PF 4325, 60 deg Included Angle, 7 deg Relief Angle, Neutral Cutting, Carbide, TiCN/Al2O3/TiN, Material Grade: K, P, For Use On: Cast Iron and Steel