PRODUCT CODE 110: FO Collar Stop - Instrument Hanger Accessories
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Rebco Type 'FO' Collar Stop Tool is designed to locate in the collar recess of the API upset and non-upset Tubing.
The Collar Stop is lowered in the tubing to the desired depth; by lifting upwards, the springs are tripped, allowing the Collar Stop Collet to expand into the collar recess. Downward jarring on the Fishing Neck will free the Running Tool and at the same time force the body to lock the Collet in place.