OSS centroller mandrels are designed to reduce the friction between the tool string and the wellbore while running in horizontal and deviated wells. They are electric feed-through and come in both tubing and casing versions
The tubing version is 1-11/16” diameter with a drift of 1-13/16” and GO/Gearhart connections
The casing version is adjustable by changed the insert lugs to accommodate 4-1/2”, 5-1/2”, 7”, 8-5/8”, and 9-5/8” casing. It is available with GO/Gearhart or QC/Acme connections