SICHUAN TOSI MACHINERY INDUSTRY Co., LTD. is the specialized manufacturer of kinds of rock drilling tools in China. It makes high quality rock drilling tools like Raise Bore Cutter, RCD Roller Cutter, TBM Disc Cutter, DTH Bits, Button Bits, Retrac Bits, Ring Bits, Taper Bits, Chisel Bits, Cross Bits, X-Type Bits, Steel Bits, etc in China.

The company was founded in 2002, operates with its original customers and from R&D, Mechanical Processing, Heat Treatment, test, Surface Treatment to Assembly. Therefore, we can offer the customer the lowest price, coupled with the best customer service in the industry. TOSI has cooperated with many famous companies with OEM business, about 85% of the products are selling well all over the world like America, South Africa, British, and Japan etc..

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!