Aichi, Japan-based OSG Corporation is the world’s largest manufacturer of round cutting tools. Established in 1938, OSG has a longstanding reputation as a total solution cutting tool provider throughout the manufacturing industry.

OSG holds the No. 1 position in the Japanese cutting tool market as well as a top-ranking position globally, with a production, sales and technical network spanning 29 countries.

Corporate Data

Capital 10,404 million yen

FY2014 Sales Amount 1,010 billion yen (consolidated)

Number of Employees 5,233 (consolidated)

Stock Listings 1st Section of Tokyo & Nagoya Stock Exchange

Stock Code 6136

OSG is our company name and trademark:

“O” stands for OSAWA, our founder

“S” stands for SCREW

“G” stands for GRINDING


Product Development Timeline

Net Sales by Product

OSG enjoys high market share globally in three of its core product offering - taps, rolling dies and end mills.

Absolute Quality Control

OSG maintains absolute control over every aspect of our manufacturing capabilities. OSG products are produced in-house – from the production of tool material, creation of tool geometry, to the development of our own proprietary coatings – the vital elements in the manufacturing of superior cutting tools.