New Products 2020-2021



CBN for Cast Iron or Powdered Metal Machining

For High-efficiency Machining of Cast Iron or Powdered Metal

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Solid CBN Grades

From Roughing to Finishing of Cast Iron, Hard-to-cut Cast Iron, and Hardened Steel

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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.

SUMIBORON BINDERLESS Ballnose Endmills image

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.

SUMIBORON BINDERLESS Radius Endmills image

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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Offering our customers learning courses to enhance customer satisfaction.

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Inquiry about CBN/PCD


 Feel free to contact us for CBN/PCD as well as questions, feedbacks, and requests.

An expert staff relevant to the inquiry will respond you with an appropriate answer.


「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.

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