EBIC OILFIELD EQUIPMENT LTD. crossover subs have two main applications.? They can be used to cross over from one connection size to another, or as a disposable part used to prolong the life of more expensive drill stem components.? Crossover subs are
available in three forms.? Connections are a box x box, box x pin, and pin x pin configuration.? The threaded connections are also protected by a durable phosphate surface coating that helps reduce galling during the initial make-up.? All of our crossover subs are manufactured to conform to API specifications.