Usage example:Cam shaft O.D


Small optical scale is built-in with a high precision pencil probe that connects directly to a PC.

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High precision, compact measuring gauge that connects directly to a PC.

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MOD Gauge

In process measuring head dedicated for outside diameter.

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Automobile engine-related measuring machine

Engine Measuring Systems

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Automobile transmission related measuring machine

Transmission Measuring Systems

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ATC Run Out Detection System

ATC Run Out Detection System

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About Us

Tosei America is a leading manufacturer of precision measuring equipment. We are dedicated to the development and manufacture of automatic measuring equipment for production lines of precision automotive parts, bearings and other electronic products. In addition to our innovative products, Tosei America offers a wide range of services to our customers. Not only do we repair our products here in the United States, we also provide full support for all our products. Our staff is knowledgeable and capable of solving even the most difficult applications.


WIN-WIN RELATIONSHIPS CREATE THE WORLD’S NO.1 PRODUCTS. Cutting-edge technological expertise and speed of development are imperative to produce global market-leading products. To accomplish this, it is essential for ACCRETECH-TOKYO SEIMITSU to build mutually beneficial “WIN-WIN” relationships with individuals and companies around the world that share the same drive to develop globally unmatched products. We have formed an international hybrid type structure, intermingling diverse cultures to create a one-of-a-kind product development system.