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      Changsha DTH Drill Construction Machinery Co., Ltd has more than 20 years of drilling tools industry since 1996.Its predecessor was the designated processing workplace of down-the-hole drilling tools of Changsha Institute of Mining Research. It is the Institute of Metal Research of the Chinese Academy of Sciences, the National Institute of Materials Research (NIMS) of Japan, and the partner of University of Queensland, Australia, the Swiss Federal Institute of Technology (EMPA).     The company has abundant experience in scientific research and production, using high-quality raw materials, advanced production technology and strict testing methods to produce products with superior performance and quality. The drilling tools of "CS DRILL" brand are sold nationwide due to their stable quality and superior performance, and are exported in batches to more than 50 countries .

Workshop east

Workshop in the middle

Office

Q1: Are you exact manufacturer or just trading company?

A1: We are both,we have our own factory. And also have many long-relationship factories.

Q2: What is your minimum order quantity?

A2:Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity. We are welcome your sample order to testing our quality,and taper button bits sample is free.

Q3: Can you accept OEM & ODM?

A3:Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly. As we have our own R&D team and the team leader is Dr.Zhao mingchun who has been always in the material research and drawing design of drilling tools for 25 years.And he had designed the world’s biggest top hammer bit and DTH hammer bit, highly praised by the users.

Q4: How about Packing

A4:Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation. Also, we can customize package according to your special requests.

Q5: How about the delivery time?

A5:It depends, generally it takes about 15-25day. If have stocks, Usually only 5-10 days if in stock.