Definition(s)
Rotary Slips
A device for the purpose of suspending tubular goods of any type from the rotary table, not capable of being used as elevators, that have some element on the internal diameter to grip the outer diameter surface of the pipe body of various tubular goods, and a tapered outside diameter to fit inside slip bowls that are operated manually or by spring(s) and/or pneumatic or hydraulic power that are installed above, on, in, or partly in the master bushing.
Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards