Consistently high quality products and competitive prices, ensure the demand in the market and hence the profit of our customers.

Delivery terms

FOB Dalian, China


TDC provides a guarantee on all kinds of products.


The  quality of our products is stable. Own production of HSS allows full control of the production chain, from raw material to finished products.
The quality control department consists of international engineers. In 1999, the department has been certified according to ISO 9001 and began to operate in accordance with international standards. Over the years, following the principle of ""continuous improvement and striving for excellence"", the unit has set a goal to reduce the percentage of defects to 0, which has become a serious competitive advantage for TDC on the world market.

Reliability of TDC

Over 20 years on the market, TDC became the leading manufacturer of drill bits of HSS. Companies rely on global giants such as Bosch, Black & Decker, Makita and other internationally renowned company.
TDC Group asset value exceeds $ 1 billion..
The company is continually evolving and moving forward, increasing both their profits and profit clients.