For almost all common locks on control cubicles. A double turning mechanism allows four different keys to be positioned on control cubicles. Universally usable for all common locks on control cubicles. A 5 mm square provided on the pin is especially suitable for aerating radiator valves. The universal ¼" bit holder is suitable for all commercially available bits. A neodymium permanent magnet keeps the bit safely in place. A spare bit can be accommodated in the head of the key. Using the handy clip, the tool can be conveniently fastened to your shirt.