Custom-made cutting tool manufacturing and re-grinding

Why us?

Making cutting tools which serve the foundation of manufacturing is a critical mission responsible tor the core of your business. Kobayashi Dia does not produce any mass product. Always facing your needs and cut materials, we design and and make all cutting tools from scratch. Intending to not only making tool life longer and cost less but also improving productivity and working environment, we strive to manufacture low-resistance tools which are rich in durability, utilising our knowledge and experiences as well as highest technology that we have acquired since the establishment in 1973, Upon your request, our team of cutting tool experts will satisfy your needs to the fullest with an optimal proposal. Each one of us at Kobayashi DIA takes a pride as a cutting tool designer and engage with our full efforts in researching, developing and manufacturing our products every day.

With the full range of equipment, our experts will satisfy need of cutting tools used in variety of manufacturing environments. PCD (polycrystalline diamond sintering body) carefully selected from inside and outside the country is used for our diamond cutting tools, and the superior wear resistance has been recognised and has contributed to the field of processing in the wide range of industries.
At manufacturing/processing sites of printed circuit board/construction materials/wood as well as nonferrous metal in particular, we have won high evaluations throughout the world. Each of our diamond cutting tool is custom-made. Therefore, we can have a tool custom-made for you with accordance of your conditions and requests. Please feel free to inquire. We pursue to manufacture not only cutting tools best matched for machines but also develop and offer processing machines.

Our technology is built upon fusion of craftsmanship with experiences of hand processing and substantial modern facilities. To support any complicated custom-made cutting tool, we own and utilise over 30 NC processing machines equipped with the latest technology, such as electric discharge machines, wire processing machines, NC grinders of VOLLMER and WALTER from Germany, ANCA from Australia and so on.

More than in our latest equipment, we take a pride in our engineers who have ceaselessly acquired and inherited craftsmanship since the company establishment. Enriched know-hows are surely inherited from our craftsmen to our next generation.

All our production staff has experienced abrasion with the tool grinder of Makino fraise machine C-40, who are so to speak craftsmen. Every single tool is original for every customer. There is no tool that we take for re-grinding which state is the same as others. Therefore, optimal processing is required after investigation for the state of the tool. It takes more than a switch to process it even with the latest equipment.

Our cutting tools are produced thanks to integration of the latest equipment, intuitions and experiences which our engineers have won through making tools by hand. In addition, more than 15 C-40 tool grinders are fully operated all time delivering delicate work which cannot be performed even with the latest facilities. Kobayashi DIA's irreplaceable property is the engineers who do not spare an effort day and night with a pride as an expert in each operation process.

We pursue improvement in quality with the perfect system to live up to customer's expectation and trust, paying minute attention to the control and inspection in processes as well as the final shipping inspection. We appropriately inspect our products in processes and at shipping, utilising a 3-D measuring device and an electric microscope as well as 7 projectors such as Nikon included.

Kobayashi DIA has led the industry as a pioneer since the success in development of diamond cutting tools for the first time in Japan in 1977. Our irreplaceable property is trustworthy relationship with customers, expertise and experiences we have developed over the years. We pass these down to our next generation, integrate them with the latest technology and satisfy customers requirements in the next generation.

At Kobayashi DIA, all our associates are positively involved in improvement activities without any compromise.

Our products are utilised especially in Asian countries and many others world-wide. Cutting tools for printed board in particular are highly evaluated. The regional corporation which we established in China manufacture and sell super hard tip saws, cermet tip sawｓ and diamond tip saws. A great number of customers globally enjoy our products which are highly evaluated for their high quality and precision.