Purpose

To manipulate the lock dogs on a BKO style top no-go / bottom no-go style lock mandrel to allow dogs to collapse and assembly to be removed from a profile, or tubing collar.The BT Extended “B” Probe allows all lock dogs of a selective (type S) to be retracted if necessary.

Precautions

Ensure that the probe body does not get worn down to far to prevent lock dogs from retracting properly.

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