TOSI was based in Chengdu City, China. Above 20 years of combined experience in design, manufacturing series roller cutters to become a professional manufacturer. The raw materials of roller cutters, are used high-quality alloy steel material. Bearing, metal seal rings and other accessories are all purchased from the best products in the industry. According to different drilling conditions to supply different high quality tungsten carbides.

TOSI's engineers adopt advanced methods such as AutoCAD and Siemens NX, CATIA system (3D modeling system) makes design and produce products. Strived to achieve high quality of individual components. At the same time strictly control quality in accordance with ISO9001 standards, to ensure that all factory-made roller cutters reach full excellent quality.

In the past 20 years, TOSI has provided various specifications of roller cutters to South Africa, Brazil, Peru, the United States, Hong Kong, Taiwan and other regions, such as four row RBM Cutter, five row RBM Cutter, Nubby Cutter, Tunneling Cutter, Steel Cutter, RCD Cutter and any kind of cutters with tungsten carbide. All of them have achieved cost efficiency and outstanding performance are the key factors that make us stand out from the competition.

Our engineers and professional personnel often use creative experiences to produce different characteristics of roller cutters for different geological conditions and usage method. Our products are generally praised by customers. Customers satisfaction have been increasing year by year.

At TOSI, you'll receive nothing less than the best - that's our promise to you. Should you have any questions, please don't hesitate to contact us.

We look forward to work with you and warmly welcome you to visit our factory - Chengdu, China!