Surface drilling, here we focus on providing surface wireline core drilling products. Obtaining High quality core sample with excellent working efficiency is our goal. Ensure you can get best output,we highly recommend to use our premium AU & RAU drill rods, it has our latest high technology can keep stable and powerful transmission of the power during drilling without any thread broken or galling (The rods should be used complied with our manual.). Also we provide the overall technical service for our customers, help you to choose a proper drill rig with the associated drilling tools to maximize your work efficiency with lower cost. As we know for wireline coring, it is a complicated work, good selection of drill bit, reaming shells, core barrel assembly and the rest of drilling tools are so important, contact our sales representative for a free consultation for your project now!