The pup joint works as one of the major tools connecting the upper and bottom drill tools, playing the function of adapting and connecting of drill string components used in oil, gas and geological drilling. The pup joint is needed if the threads of the upper and bottom drill tools are unmatched. Pup Joint sets are available in: Integral Premium Thread Box-by-Pin Pin-by-Pin with couplings boxed separately Pin-by-Pin with couplings hand tight Pin-by-Coupling Box Flush joint connections Advantage 1.we can be your trust worth supplier 2. Strict quality inspection 3. Perfect product quality 4. Fast Delivery 5. Reasonable Price 6. More perfect quality certification system 7. After-sales service