Pramet Turning Insert, VCGT Insert, 221 Insert, Diamond, 2.8 mm Maximum Depth of Cut, 6.35 mm Inscribed Circle, 3.18 mm Thickness, 11 Seat, Positive Rake, AL Chipbreaker, 0.4 mm Corner Radius, 2.8 mm Hole Dia, Manufacturers Grade: HF7, ANSI Code: VCGT 221F-AL HF7, ISO Code: VCGT 110304F-AL HF7, 35 deg Included Angle, 7 deg Relief Angle, Carbide, Diamond, Material Grade: H, K, M, N, S, For Use On: Hardened Steel, Cast Iron, Stainless Steel, Aluminum and Titanium/Super Alloys