Die collar

Die Collars is an external fishing tool which is engaged on the outside wall of tubing objects such as oil tubing and drill pipe. It is used to fishing the cylinder junks which have no inner bore or the inner bore is blank off. Die collar can work with right and left hand drill pipe and other tools. It can be used in different fishing process. The fishing thread is 5 threads per inch, taper 1:16. The hard and sharp edge of fishing threads can make threads easily. When the fish enrbecl in die collar, it made the thread on outside of fish by rotating the drilling tools.

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