Evaluating a CNC pipe threading lathe comes down to two separate tests: whether it can hold thread geometry across a b...
Most drill pipe and coupling lines are planned around a lathe purchase and then run into trouble at the station nobody...
Put a ring gauge on the first coupling that comes off a new lathe and it will almost always pass. Run that same machine...
Nobody buys a drill pipe joint and coupling lathe twice by accident. Shops that get this decision wrong usually find ou...
A wiped pin on a 5 1/2 in drill pipe arrives in the repair bay with three problems at once: galled thread crests, a sho...
Ten joints into a casing coupling run, a threading operator checks standoff with a gauge, gets a clean reading, and the...