Sumitomo

Coated SUMIBORON BNC8115 / SUMIBORON BNS8125

Solid CBN from Roughing to Finishing of cast iron, exotic alloy cast iron and hardened steel (Hard-to-cut)

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From Roughing to Finishing of Cast Iron, Exotic Alloy Cast Iron, and Hardened Steel

● Coated SUMIBORON BNC8115

PVD coating with excellent wear resistance suppresses flank wear in machining of exotic alloy cast iron and hardened steel
Ideal for roughing and 0.5mm to 0.3mm depths of cut can also be used for roughing and finishing of grey cast iron

Gold-colored coating for improved visibility of used corners


● SUMIBORON BNS8125

Optimising the particle size distribution of the CBN particles has resulted in improved chipping resistance and longer life while maintaining wear resistance during grey cast iron machining

BNC8115BNS8125 Application Range