OSG
What is OSG?
OSG is a Japanese manufacturer of rotary cutting tools, specializing in threading tools, drills, and end mills. The company operates globally, and its solutions are widely used in machine shops and manufacturing plants for a variety of metal machining applications. OSG is known as a manufacturer whose product range covers the entire area of rotary cutting tools—from design and production to application support.
OSG operates as an international industrial company with manufacturing, product development, and technical support in several countries. The company's business model is based on long-term development, process control, and systematic optimization of tool performance to meet the needs of the machining industry.
The History of OSG
OSG's roots go back to 1938, when Osawa Screw Grinding Co., Ltd. was founded in Japan. In its early days, the company focused on the production of taps and threading dies, which still form the foundation of OSG's core expertise. The development of threading tools laid the groundwork for broader cutting tool production.
In the 1960s, the company expanded its operations and adopted the name OSG Corporation. International growth began at the end of the 1960s when OSG established its first subsidiaries outside Japan. Since then, the company has built a global network to support local machine shops with technical assistance, application expertise, and logistics.
OSG’s Position in the Machining Industry
OSG is especially well known as a manufacturer of threading tools, and its solutions are widely used for both standard and demanding specialized applications. From a machining perspective, OSG’s strength lies in understanding entire process chains, where the tool geometry, coating, material, and cutting parameters form a well-controlled package.
The company’s tools are suitable for machining a wide range of materials, including structural steels, stainless steels, cast irons, aluminum alloys, and hard-to-machine superalloys. This makes OSG a widely used supplier in diverse machine shop environments.
OSG’s Threading Tools
Threading is OSG’s historical and technical core area. The product range covers taps, thread forming tools, and thread mills, all used in both CNC machining and automated production processes. These tools are engineered to meet requirements where thread quality, dimensional accuracy, and process reliability are essential.
The development of OSG’s threading tools emphasizes chip control, stable cutting forces, and tool life. These attributes directly influence the reliability of machining and the overall costs in the machine shop.
OSG’s Drilling and Milling Tools
OSG manufactures a wide range of drills and end mills designed for both general use and specific material groups and machining strategies. The focus for drilling tools is on hole dimensional accuracy, surface finish, and a stable cutting process.
For milling tools, OSG’s solutions include end mills, face mills, and special geometries. The design of these tools takes into account CNC machine dynamics, spindle speeds, and feed strategies, supporting efficient and repeatable machining.
OSG’s Manufacturing and Technical Expertise
OSG manufactures a significant portion of its tool components in-house, including tool geometries, coatings, and finishing processes. This allows for total control over the production chain and tool consistency. Product development relies on continuous testing and collaboration with the machining industry.
Technical support and application expertise are integral parts of OSG’s operations. The tools are not seen as standalone products, but as parts of a complete machining system where cutting parameters, materials, and machines form an effective whole.
Summary
OSG is an international manufacturer of rotary cutting tools, with particular expertise in threading tools, drilling, and milling solutions. The company's long history, broad product range, and process-driven approach make it an established player in the machining industry. OSG's tools support controlled, precise, and efficient machining in a variety of production environments.
