Corrosion-resistant nickel-plated carbon steel utility key for gas, water and electricity service cabinets and control boxes. Suitable for accessing shut-off valves, mains pipes and switchboards. Includes square male 6, 7, 8 and 9mm, square female 7 and 8mm and triangular 9mm. Includes double-ended flat 7mm and PH2 screwdriver bit and holder on chain.