Tohnichi

Tohnichi – Precision Torque Tools that Drive Innovation Forward

Precision begins with a single turn of the wrench

On the production line, a simple twist of a bolt can be the difference between lasting performance and premature failure, between flawless quality and hidden risk. In a world where every detail demands precision, torque control becomes a silent yet critical cornerstone. It’s within this essential niche that Tohnichi has built over 75 years of reputation—delivering reliability, Japanese craftsmanship, and a commitment to constant innovation.

From Japan to the world – where precision is never “good enough”

Founded in 1949, Tohnichi emerged as a specialized torque tool manufacturer based in Japan. Instead of branching out widely, it chose to go deep—creating a comprehensive portfolio of torque control solutions tailored for production, quality assurance, and safety-critical applications.

Its guiding principle? “Tighten it right from the start.” With this philosophy, Tohnichi helps factories reduce errors, lower maintenance costs, and ensure product quality through consistent torque accuracy.

Engineered for exactness – built for modern manufacturing

Tohnichi’s product lineup is purposefully focused and engineered for results:

Torque Wrenches: Available in preset, click-type, dial, and digital versions—suited for inspection, assembly, or in-line production torque checks.

Torque Screwdrivers: Lightweight and accurate, these are widely used in electronic assembly, medical device production, and small-component fastening.

Torque Testing: digital indicators, and testers that support calibration and real-time production monitoring.

Adjustable Torque Wrenches: Featuring signal output or digital verification, these tools ensure torque accuracy in fast-paced production lines—minimizing human error and improving process traceability.

Extensions, Adapters, and Specialty Tools: Designed for complex or constrained assembly spaces—vital in aerospace, automotive frames, and specialized manufacturing setups.

Beyond factory floors

Tohnichi’s influence extends well beyond traditional manufacturing. Its tools are deployed in renewable energy systems, aerospace structures, high-precision defense assemblies, and even surgical device calibration. Wherever fasteners must perform flawlessly—Tohnichi plays a quiet but critical role.

Many products are ISO certified, traceable, and designed for seamless integration into quality assurance ecosystems like MES or ERP platforms.

Not just tools – but a torque assurance system

As manufacturing continues to evolve with smart systems and real-time analytics, Tohnichi stays ahead by offering Bluetooth-enabled tools, cloud-connected indicators, and torque logging solutions. These innovations position Tohnichi not just as a tool provider, but as a complete torque assurance partner for smart factories.

EMIN is the official distributor of Tohnichi products and services in Vietnam.

For more details, please contact us:

EMIN Vietnam Joint Stock Company

Website: https://emin.vn

EMIN Ha Noi - Vietnam:

Address: No 203 Nguyen Ngoc Vu, Trung Hoa Ward, Cau Giay District, Ha Noi City

Phone: (024) 35.381.269 - (024) 35.381.271- (024) 35.381.272

Hotline: (+84) 867820758

Fax: (024) 35 190 360; Email: hn@emin.vn

EMIN HCMC - Vietnam:

Address: No 110A Chu Van An, Ward 26, Binh Thanh District, Ho Chi Minh City

Tel: +84 (28) 3811 96 36 - +84 (28) 3811 93 59 - +84 (28) 3811 62 13