
PCBN & PCD inserts General turning Ideal machining conditions CNGN L I.C S Turning CBN inserts Normal machining conditions Unfavourable machining conditions 12 04 12.9 12.7 4.76 A CN** negative insert BL (CBN) BH (CBN) P Turning K N H B YZB121 YZB221 YZB231 ISO r ap f CNGN120404 0.4 0.5-2.0 0.3-0.5 ż CNGN120408 0.8 0.5-2.0 0.3-0.5 ż ż ż Milling CNGN120412 1.2 0.5-2.0 0.3-0.5 ż ż ż CNGN120416 1.6 0.5-2.0 0.3-0.5 ż ż ż Medium Cut Ɣ Ex stock ż On demand BL CBN with a low CBN content BH CBN with a high CBN content Tool holder CCLNR/L Kr: 95° C Drilling A258 D Information Technical E Index System code A40 Grade selection A146 Technical info A447 Cutting data A324 A 159