Article details 9,999 different key changes possibleFor use where high security requirements have to be metSuitable for heavy-duty useCustomised MK/GMK systems available Area of application For all locks and rotary handles of the Symo system Version standard profilecustomised Cylinder Ø 12.5 mm Type of locking with 6 pin tumblers with key No Order reference Key changes 0301A-9999A available ex warehouse. Please specify required key change.