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Be sure that the profile gage is free from debris or is not damaged.

Place the profile gage into the thread form (in full depth threads).

Pivot the profile gage in the threads to achieve the best fit.

Using your index finger, apply pressure to the front of the gage. Apply just enough pressure to maintain the gage’s contact with the thread flanks.

Shine a light behind the profile gage and note the fit of the mating thread forms. Repeat on remaining threads.

Slide the profile gage counter clockwise around the connection and remove any debris. Repeat on remaining threads.

If you encounter a burr, slide the profile gage in the opposite direction, to avoid grinding the burr into the thread.

Record findings on the Inspection Report.