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Profile of the Company

For machines, smartphones, and robots.To tighten a screw, you need a product of EIGHT TOOL.

The range of use of hexagon cap bolts has been wider from industrial goods to construction related goods since they have a lot more befits of being strong while downsized and having the ability to make the touch area flat when compared to ordinary hexagon screws.

EIGHT TOOL manufactures products in all sizes, millimeters or inches, to meet a wide variety of customers’ needs.
We have more than 2,000 kinds of products including those in special sizes that are not in JIS or ISO, and taper head products which EIGHT TOOL developed independently.
This is only possible for a specialized manufacturer.

With self-manufacture, we can offer a minimum of a single product. We sometimes receive orders of hexagon wrenches from overseas manufacturers that will be used for highly-guarded screws. Since our product quality is highly evaluated, “EIGHT TOOL’s hexagon wrench should be used for an important screw.” This evaluation is a sign of trust in our products at manufacturing scenes around the world.

Company Profile

Company Name

20 million yen

President and Director
Executive Officer
Executive Officer
Executive Officer
Executive Officer
Senior Adviser

Masao Tsuji
Yasuhiro Oka
Yuji Yamanaka
Kuniyoshi Sawai
Masamichi Shiraiwa
Shinto Nishio
Seiichi Tanaka
Satoshi Morimoto
Mikio Onishi

Business items
Hand Tool (hexagon wrench / Screwdriver )

Bank of Account

Senshu Ikeda Bank,
Awa Bank,
Mitsubishi UFJ Bank,
Hokuriku Bank, Resona Bank,
Osaka City Shinkin Bank,
Tottori Bank,
Sumitomo Mitsui Banking,

Head Office

4-9-43, Minami-Tasumi, Ikuno-ku, Osaka-city, 544-0015, Japan
TEL: +81-6-6793-9025   FAX: +81-6-6793-8298

Tottori Factory

1284-53, Shimosakamoto, Kedaka-cho,
Tottori-city, 689-0221, Japan
 TEL: +81-857-82-2626   FAX: +81-857-82-2625

Tokyo Office

9F, Nakano SunPlaza, 4-1-1, Nakano, Nakano-ku,
Tokyo, 164-8512, Japan
TEL: +81-3-5942-3084   FAX: +81-3-5942-3601

America Office

406 Seventh St., Suite 203,
Bay City, MI 48708, U.S.A.
TEL: +1-989-737-6272

Number of Employees
Male – 50, Femail – 20   (as of December 2019)

Head Office

Tottori Factory

America Office