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Testing Drifts

DOTS offers a comprehensive range of standard Drifts.


The drift is a precision machined cylinder that is pulled, pushed, or dropped through an oilfield pipe to qualify for proper internal clearance and in many cases to qualify for ovality and straightness of the tube as well.

The most common drifts we manufacture are made of steel, but in some applications drifts made of aluminum or non-metallic material are required.

DOTS Drifts are manufactured to API 5CT specifications. We do manufacture to customer specifications when requested.