For control cabinets and shut-off systems in the supply of gas, water and electricity for technical installations in buildings, e. g. air conditioning and ventilation systems, shut-off valves, mains switch-boards, etc. Square 5 + 7 + 8 mm Triangular 9-10 mm Two-way key bit 9 mm diamter with bit insert: slot 1.0 x 7 mm and cross recess PH 2 with adaptor for 1/4 Inch bits on securing chain zinc die-casting Long execution - conical square |