Our History

A-One Seimitsu Inc. was founded in 1970 in Fuchu-shi, Tokyo. Since then, we have specialized in precision tools and have gained high market share and trust among our clients.

Our Mission

We specialize in the manufacture of tools used in precision machines. Our mission is to support the development of the entire manufacturing industry.
Since our founding, we have continued to pursue superior technical capabilities and quality, and have contributed to improving our customers' productivity and competitiveness.

Three Pillars of Business

• Collet chucks and guide bushes for small automatic lathes: carbide, high precision, strict in-house processing and quick delivery.
• Making special cutting tools and re-polishing various cutting tools: we accept custom orders from one unit, and our CNC grinding produces cutting tools as good as new.
• Manufacturing of various dedicated machines and automatic lathe cams: from design to production, low cost and high accuracy.

We focus our management resources on "high quality", "fair price", and "short delivery time". In addition to manufacturing existing products and accepting semi-orders, we also work to manufacture and offer brand new tools in response to user needs. This enables us to discover where the needs are, and to create new markets.
As a manufacturing company, we place importance on environmental considerations and social responsibility, and work to achieve a sustainable future. We will continue to pursue technological innovation and quality improvements, and contribute to manufacturing worldwide. As a manufacturing company, we place importance on environmental considerations and social responsibility, and work to achieve a sustainable future. We will continue to pursue technological innovation and quality improvements, and contribute to manufacturing worldwide.