CNGA CBN Inserts Application Case ITS950-for Finishing turning bearing excircle and face For example: Workpiece: Bearing Material: GCr15 Hardness: HRC58-63 Insert: CNGA120408 Cutting parameter: Vc=150m/min ap=0.3mm f = 0.1mm/r Tool life: 100pcs/edge For comparison only: Other ceramics inserts: 60pcs/edge Vc=120m/min