Carbide Turning Insert, 0 Degrees , 80 Degrees Rhombic, Style CNMG, Insert Size 431, Chip-Breaker ML, Grade TT5030, Application Medium/Finishing, Workpiece Material Stainless Steel and High Temps, Inscribed Circle 1/2 In, Insert Thickness 0.188 In, Nose Radius 0.016 In, Coating PVD-TiAlN, Cutting Direction Neutral, Mounting Hole Dia. 0.203 In, Mounting Style Top and Hole Clamping, Rake Negative, of Edges 4, ISO Number CNMG120404ML TT5030, ANSI Number CNMG431ML TT5030. Only shipped in quantities of 10.