Sandvik Coromant Turning Insert, 1-Sided Basic Shape, Series: CoroTurn TR, TR-VB Insert, 1304 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, 0.0156 in Corner Radius, 0.1338 in Hole Dia, Manufacturers Grade: 7025, ANSI Code: TR-VB1304S01020F 7025, ISO Code: TR-VB1304S01020F 7025, 35 deg Included Angle, 7 deg Relief Angle, Neutral Cutting, Carbide, Uncoated, Material Grade: H, For Use On: Hardened Steel