Custom-made diamond cutting tool manufacturer and re-grinder Kobayashi DIA Ltd.

Exterior and interior materials for building

Siding boards and ALC
Calcium silicate boards and noncombustible decorative boards

Printed boards

Glass epoxy boards
Aluminium borads and thick copper boards

Resin treatment

Artificial marble and Bakelite
Plastic and CFRP

Woody materials

Solid wood, laminated lumber and plywood
Vertical boards and MDF

Nonferrous metal

Aluminium alloys, copper and brass
Automobiles and automobile parts

Kobayashi DIA has been engaging in manufacturing of industrial cutting tools since the establishment in 1973.
Since we succeeded in development and making diamond cutting tools into products in 1977, we have contributed on-site manufacturing innovation as a pioneer of diamond cutting tools. Designing optimal cutting tools for customer's needs. That is Kobayashi DIA's mission.

Unique made-to-order system

We fully customise and manufacture diamond cutting tools suitable for your requirement for machining and cut materials upon your request.
Please contact us when you consider modification and improvement of the current cutting tools you use.
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Original cutter KobaCut

KobaCut is high precision diamond cutting tool planned and developed with customers' view points. Please refer to the spec of KobaCut we highly recommend with confidence. KobaCut has already acquired 2 patents.

Sustainable follow-up service

Re-grinding makes tool life and re-grinding frequency different. We re-grind your tools with precision utilising our accumulated skills and latest machines. Please try with your tools and see our grinding technology to start with. Such maintenance as tip replacement can also be ordered.