The Knipex Pen-Style Control Cabinet Key has four different key profiles, and can be utilised by swivelling the key holder. There is also a universal, magnetic 1/4in bit adaptor for standard bits, and an additional bit adaptor for 1/4in bits inside one key profile, easy to carry pen-style design with a fastening clip. Suitable for control cabinets, shut-off systems in the supply of gas, water and electricity. The key is also for technical installations within buildings, e.g. Air conditioning and ventilation systems, shut-off valves, main switchboards, etc.. Supplied with 2 reversible bits: cross recess PH / slot 7.0 x 1.2mm and TX20 / TX25. Specification: Capacity: Square: 5.0/6.0/8.0mm, Double-bit Key: 3-5mm, Triangular: 9.0mm.