We are Chengdu Honest Diamond Bit Co., Ltd. Our headquarter is Chengdu History Petroleum Technology Co., Ltd(CDHP) specializes in R&D, Production and technical support for various PDC bits, tricone bits, diamond bits And supply drill pipes also well drilling tools. Our products are used for well drilling, Gas well drilling, water well drilling, mining, etc.

Our goal is to supply you the most suitable oil drill tools and the most competitive cost. As our staffs are well trained and most of them have more than 5 years experiences in oil well drilling, drill bits choosing and technical support, we are confident to service you well. The manufacturing and quality control is strictly proceed under the API standard, so the management system is a international standard and is a efficient group. Regards to the equipments of our CNC, lathe and welding machines, most of them are impoted from Germany and America. They keep the well precious manufacturing also good status of the ability. Customer's support is the treasure of our resource. We keep moving to make everything better and better.

Our office is located in blue light International City, next to Shuangliu Internationl Air Port. The factory is in Pengzhou City, near to our office. It is a good place to stay and we will be here to welcome all of you visit. Just like the logo, lets develop together and go to the bright win-win future hand by hand.