TurningMillingDrillingTechnicalInformationIndex YZB121 YZB221 YZB231 General turning PCBN & PCD inserts A Ideal machining conditions SNGN L I.C SNormal machining conditions12 0412.712.74.76 Turning CBN inserts Unfavourable machining conditions 15 07 15.875 15.875 7.94 SN** negative insert BL (CBN) BH (CBN) P K N H B ISO r ap f SNGN120404 0.4 0.5-2.0 0.3-0.5 ż SNGN120408 0.8 0.5-2.0 0.3-0.5 ż ż ż SNGN120412 1.2 0.5-2.0 0.3-0.5 ż ż ż SNGN120416 1.6 0.5-2.0 0.3-0.5 ż ż ż SNGN150716 1.6 0.5-2.0 0.3-0.5 ż SNGN150720 2 0.5-2.0 0.3-0.5 ż Ɣ Ex stock ż On demand BL CBN with a low CBN content BH CBN with a high CBN content C Tool holder CSKNR/L CSRNR/L CSDNN Kr: 75° Kr: 75° Kr: 45° A262 A263 A265 D E System code A40 Grade selection A146 Technical info A447 Cutting data A324 A 160