TIANHE junk sub is normally used to catch and remove shivers and fallen objects such as carbide tooth, drill bit and bearings which are too heavy to be removed from the well hole.Tianhe Junk sub can be easily disassembled to clean and maintain.Tianhe Design junk sub can be used while drilling operation to clean the drilling fluid effectively.

1.Order instruction
4.1When Order product is available in our specification table,please specify the model number in the contract.
4.2 When order special specification,the performance parameters must be specified in the contract.