API J55APIP110 7inch N80 Pin X Box 3-1/2inch Casing Pipe Adapter

Saver Sub

Saver Sub is used to extend the life of the kelly by taking the connection wear each time it is make-up to a drill stem component.The saver sub connection is sacrificed because it can be easily repaired or inexpensively
replaced.The saver sub can be equipped with a rubber protector to reduce BOP equipment and casing wear resulting from contact damage with a lower Kelly
connectiondefault long,default length 24".