Pramet Turning Insert Pramet, RCMT Insert, 1204MO Insert, Round Shape, 5 mm Maximum Depth of Cut, 12 mm Inscribed Circle, 4.76 mm Thickness, 12 Seat, Positive Rake, UR Chipbreaker, 0.17 mm Corner Radius, 12 mm Diameter Hole, Manufacturers Grade: T9315, ISO Code: RCMT 1204MOE-UR T9315, 7 deg Relief Angle, Carbide, Material Grade: H, K, P, For Use On: Hardened Steel, Cast Iron and Steel