The bahco 9 in 1 switch cabinet master key is suitable for all the usual technical shut off systems it has a varnished plastic body with a practical securing chain and snap hook the key profiles are zinc die cast for increased durability the master key has 8 different keys which are fitted on a double turning mechanism allowing good positioning in addition the body houses a 5mm square key suitable for aerating radiator valves and a 14 inch magnetic bit holder it has the following functions 4 x s