#43. Kelly

The heavy square or hexagonal steel member suspended from the swivel through the rotary table. It is connected to the topmost joint of drill pipe to turn the drill stem as the rotary table turns.

Kelly Photograph. This photograph shows the kelly underneath the traveling block and crown block, in the mast of the well. Kelly Illustration. This illustration is an exploded view of parts: Kelly, kelly saver sub, kelly drive bushing, master bushing, turntable.