We have confirmed that one of our employees has been tested positive for the Coronavirus.
Based on the guidance of the local public health center, we will take measures to prevent the spread of the infection and place the highest priority on ensuring the health of our employees as well as quality and product safety.


MECT2021(Mechatronics Japan 2021) (MECHATRONICS TECHNOLOGY JAPAN 2021), one of the largest machine tool exhibitions in Japan, will be held.
Nissin Diamond will exhibit at the OSG Corporation booth, so please come and visit us!
Date: October 20th (Wed.) ~ 23th (Sat.), 2021 10:00~17:00
Venue: Port Messe Nagoya, Hall 2 (North), 2A24, OSG Corporation booth


Monozukuri Review ONLINE No.76
The article, "Super Hale Bite was jointly developed with Makino Milling Machine Co., Ltd. Nisshin Diamond to propose at MECT2021" was published.


We became a supporting company of MLGs (Mother Lake Goals) which is Lake Biwa's version of SDGs.


Business tie-up with Makino Milling Machine Co., Ltd.
We will continue to provide "Super Hale Bite".


We have opened the English and Chinese version web site.
Please select「Japanese」or「Chinese」button on the upper-right of the page.


Monodukuri Review Online No. 59
A new article has been published: Leadership of Nissin Diamond Moves from Seino Kawabe to Nobuaki Kamiya After Going from Annual Sales of Less than 500 Million Yen to over 800 Million Yen in Kawabe's Six-year Tenure (available in Japanese only)


Monodukuri Review Online No. 54
A new article has been published: Nissin Diamond Achieves Year-on-year Growth for 20 Consecutive Months, With Capital Investment Already in Excess of 200 Million Yen (available in Japanese only)


Change of company name and address

Company information


Overview and history

Sales information




Product information

Natural diamond cutting tools

Primarily used for machining aluminum, diamond is attached to existing indexable inserts and used for finish machining. These items can be set into insert holders that are currently in use, facilitating finish machining.

Synthetic single-crystal diamond cutting tools

Compatible with brazing and soldering technology, the shape of these end mills makes it possible to machine multiple surfaces at once. These tools are primarily used for machining mirror surfaces on resin.

PCD (polycrystalline diamond) cutting tools

As performance in automotive component machining improves, better aluminum alloys and improved tool performance are also required. These tools provide consistent precision and a lifespan ten times longer than that of carbide tools.

CBN cutting tools

Most CBN cutting tools use inserts and bites. They are used for machining ferrous metals such as hardened steel, cast iron and sintered metal, and enable machining with greater speed and precision than carbide tools while also having a long lifespan.

Nissin Diamond Co., Ltd.
Headquarters / Factory: 1572 Imazu, Imazu-cho, Takashima-City, Shiga 520-1621, Japan 
Phone: 0740-22-2415 Fax: 0740-22-4178