Iron Roughneck : A pipe connection device that sits on the rig floor or is suspended just above the floor. It combines lead and backup tongs with a integral spinning table to spin the top joint during make-up or break-out
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}