
CBN/PCD
Lineup
BN7115
CBN for Cast Iron or Powdered Metal Machining
For High-efficiency Machining of Cast Iron or Powdered Metal

BNC8115/BNS8125
Solid CBN Grades
From Roughing to Finishing of Cast Iron, Hard-to-cut Cast Iron, and Hardened Steel

Ballnose Endmills
Nano-polycrystalline CBN Tools
Ultra-high precision for direct milling of hardened steel dies
Ideal for direct milling of high hardness materials such as hardened steel molds.Maintains long-term high accuracy and excellent surface finish.

Radius Endmills
Nano-polycrystalline CBN Tools
Ultra-high Efficiency and Long Tool Life in Machining of Exotic Alloys and Hardened Steel
Ideal for finishing of exotic alloys like Ni-based heat-resistant alloys and mold materials for Additive Manufacturing.

We strongly support
our customers' CRAFTSMANSHIP!
Tool Engineering Services
Sumitomo Electric offers systematized tool engineering services to its customers in order to guarantee satisfaction for their machining needs.
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Apps
「SumiTool Calculator」
Handles the complex equations used for turning, milling, and drilling.
「SumiTool Converter」
It displays the related product of SUMITOMO ELECTRIC INDUSTRIES, LTD. when input kinds of grade and breaker.