North Star Drilling Tools
Beijing 100176
China
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Check the drill pipe thread
Courtesy of North Star Drilling Tools
It is important to check your threads for wear and make sure they are free of sand, dirt and grit. Foreign debris will prematurely wear the threads. You should visually inspect the connections for galling or sharp threads.
How do I know when the rod is worn out?
You don’t. However, there are a couple of things you can do to assess the current condition of your rod.
First, visually inspect the connections. If the connections look good and they don’t show signs of galling that’s a good sign.
Next, check that the pin and box torque shoulders. You should keep the jaws 1/2″ from the edge of the shoulders to avoid deformation/damage.
Finally, take a set of calipers and measure the outside diameter of both the box and pin ends of the tool joints. Compare this measurement to the tool joint dimensions of new pipe.
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