Tooling by DIJET DIJET Grades for Cutting Tools Polycrystaline CBN Sintered (for high hardened materials) Super Hardened Polycrystaline Diamond PCD (for aluminium, non-ferrous metal) Steel P Stainless Steel M Cast Iron K Cutting Coated Milling Tool Grades Grades Super Alloys S High Hardened Materials H Diamond Coated DLC Coated Cermet Milling Grades Grades A002