General turning Ceramic inserts TNGN L I.C S A Ideal machining conditions Normal machining conditions 16 04 16 07 16.5 16.5 9.525 9.525 4.76 7.94 Turning ceramic inserts Unfavourable machining conditions 22 04 22 12.7 4.76 TN** negative insert CM CN Turning P K N H B CN1000 CN2000 CA1000 ISO r ap f TNGN160404T02020 0.4 0.5-4.0 0.15-0.50 ż Milling TNGN160408T02020 0.8 0.5-5.0 0.2-0.6 ż ż TNGN160412T02020 1.2 1-5 0.2-0.6 ż ż ż TNGN160708T02020 0.8 0.5-2.0 0.2-0.5 ż ż TNGN160712T02020 1.2 1-4 0.2-0.6 ż Medium Cut TNGN220408T02020 0.8 0.5-2.0 0.2-0.5 ż ż TNGN220412T02020 1.2 1-4 0.2-0.6 ż ż TNGN220416T02020 1.6 2-5 0.2-0.6 ż ż C Ɣ Ex stock ż On demand CM Mixed ceramic CN Si3N4 Ceramic Tool holder Drilling CTJNR/L CTUNR/L Kr: 93° Kr: 93° D A259 A261 Information Technical E Index System code A40 Grade selection A174 Technical info A447 Cutting data A324 A 186