TurningMillingDrillingTechnicalInformationIndex YCB111 YCB121 YCB131 YCB211 General turning PCBN & PCD inserts A Ideal machining conditions CNGA L I.C S dNormal machining conditions12 0412.912.74.765.16 Turning CBN inserts Unfavourable machining conditions CN** negative insert BL (CBN) BH (CBN) P K N H B ISO r ap f CNGA120404-2 0.4 0.08-0.50 0.05-0.20 ż Ɣ ż ż CNGA120408-2 0.8 0.08-0.50 0.05-0.25 Ɣ Ɣ Ɣ Ɣ CNGA120412-2 1.2 0.08-0.50 0.05-0.30 ż Ɣ Ɣ Ɣ CNGA120408-2W 0.8 0.08-0.50 0.05-0.25 ż ż CNGA120412-2W 1.2 0.08-0.50 0.05-0.30 ż ż C Ɣ Ex stock ż On demand BL CBN with a low CBN content BH CBN with a high CBN content Tool holder DCLNR/L PCBNR/L PCLNR/L MCBNR/L MCLNR/L PCLNR/L Kr: 95° Kr: 75° Kr: 95° Kr: 75° Kr: 95° Kr: 95° D A197 A204 A205 A218 A219 A284 E System code A40 Grade selection A146 Technical info A447 Cutting data A324 A 148