A mechanism attached to the swivel that spins the kelly joint in and out of the first joint of drillpipe after the kelly has been broken out, unloosened. The spinner saves time in unscrewing and again in screwing in when a joint of drillpipe must be added to the string,a pneumatically-operated device mounted on top of the kelly that, when actuated, causes the kelly to turn or spin. It is useful when the kelly or a joint of pipe attached to it must be spun up, i. e., rotated rapidly in order to make up the kelly or pipe in another joint of pipe.
