Definitely effective Long service life for reduced costs High-performance cutting inserts are also available.
BNC2010 and BNC2020 are the latest additions to the coated SUMIBORON Series, to provide even better stability and longer tool life for hardened steel machining.
GRADE SELECTION
Excellent surface roughness and dimensional accuracyImproved wear resistance thanks to special CBN substrateReduced flank wear thanks to special stable multi-layered coatingDrastically improved tool life
High efficiency and general purpose grade for hardened steel machiningTough CBN substrate with highly wear-resistant coatingHighly adhesive layer for high chipping resistanceReliable processes and stable long tool life 
