Pramet Turning Insert, SNMM Insert, 856 Insert, Squared, 0.551 in Maximum Depth of Cut, 1 in Inscribed Circle, 5/16 in Thickness, 1 in Width, 1 in Length, 25 Seat, Negative Rake, HR Chipbreaker, 3/32 in Corner Radius, 0.359 in Hole Dia, Manufacturers Grade: T9335, ANSI Code: SNMM 856-HR:T9335, ISO Code: SNMM 250724E-HR:T9335, 90 deg Included Angle, 0 deg Relief Angle, Carbide, Material Grade: M, P, S, For Use On: Stainless Steel, Steel and Titanium/Super Alloys