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To manipulate the lock dogs on a BKO style selective style lock mandrel to allow dogs to collapse and assembly to be removed from a profile, or tubing collar. The BT AC Probe allows upward facing lock dogs of a selective (type S) to be
retracted if necessary.
The AC Probe is made up of 4 components:
2. Retaining Head
Ensure that the probe body does not get worn down to far to prevent lock dogs from retracting properly. Rust, sand or debris in the swivel (spindle) will hamper tool operations.