DS EN 50109-2-4:1995 Hand Crimping Tools - Tools For The Crimp Termination Of Electric Cables And Wires For Low Frequency And Radio Frequency Applications - Part 2-4: Particular Requirements For Centre Contacts Of Rf Connectors, Series Smz Defines requirements, limiting dimensions and operating forces incorporating a system of multiple indentors of the 8-indent type, commonly known as "Octodent".