Bahco MK9 9-in-1 Switch Cabinet Multi-Fitting Master Key The Bahco MK9 master key is suitable for 9 different applications. It is the ideal solution for all usual technical shut-off systems. The 5mm square key is ideal for aerating radiator valves and has a varnished plastic body with a practical securing chain and snap-hook. This model features a double turning mechanism that allows 8 different locks to be positioned. Features: Zinc die-casted Two-way key: 3-5mm Half-moon locking: 6mm Securing chain with snap-hook Triangular locking: 7, 8-9, 10-11 mm Suitable for 9 different applications 1 wrench for 9 different applications Switch cabinet wrench for all usual technical shut-off systems Square locking: 5, 6, 7-8, 9-10 mm, including 7-8 mm also magnet A double turning mechanism allows 8 different locks to be positioned The body houses a 5 mm square suitable for aerating radiator valves and a 1/4 bit holder including magnet Specification: 1x Half-moon: 6mm 1x Two-way: 3-5mm 4x Square: