Seco Turning Insert, VBMT Insert, 160404 Insert, Diamond, 3.75 mm Maximum Depth of Cut, 9.52 mm Inscribed Circle, 4.76 mm Thickness, 16 Seat, Positive Rake, F1 Chipbreaker, 0.4 mm Corner Radius, 4.5 mm Hole Dia, Manufacturer's Grade: TP2501, ANSI Code: VBMT331-F1 TP2501, ISO Code: VBMT160404-F1 TP2501, 35 deg Included Angle, 5 deg Relief Angle, Neutral Cutting, Carbide, CVD-TiCN+Al2O3 Coated, Material Grade: P, For Use On: Steel