Neutral Insert With 8 Cutting Edges. Drawing No.: M/S. Sandvik S Part No. Lnux-191940-Pm 4215 Or M/S. Widia S Part No. Lnux 191940 Db-Tn2000 Or M/S. Ceratizit Part No. Lnux 191940 Sn-R74 Grade Ctcp125. Matl. Spec. : As Per Drawing / Part No.