Sandvik Coromant Turning Insert, 1-Sided Basic Shape, Series: CoroTurn TR, TR-VB Insert, 1308 Insert, Rhombic, 0.008 in Maximum Depth of Cut, 0.3149 in Inscribed Circle, 0.1781 in Thickness, 0.5118 in Length, 13 Seat, Positive Rake, 0.0312 in Corner Radius, 0.1338 in Hole Dia, Manufacturers Grade: 7015, ANSI Code: TR-VB1308S01020F 7015, ISO Code: TR-VB1308S01020F 7015, 35 deg Included Angle, 7 deg Relief Angle, Neutral Cutting, Carbide, TiN, Material Grade: H, For Use On: Hardened Steel