Four-in-one multi-purpose key set, suitable for various appropriately sized switches, locks, and gauges. Commonly used for water meters, electricity meters, gas valves, elevator inspection hatches, cabin doors, machine rooms, pipe doors, and more. Whether for public facility maintenance, industrial settings, or household use, this versatile key will always come in handy.SpecificationMaterial: Zinc AlloyColor: Silver, Style EOverall Size: 72x72mm/2.83×2.83inch(LxW)Square Size(Edge x OD): 6.3×11.8mm / 0.25×0.67inchSquare Size(Edge x OD): 8.3x14mm / 0.33×0.55inchRound Size(Dia x OD x Max OD): 5.8×8.8x14mm / 0.23×0.35×0.55inchSquare Size(Beveled Edge x OD): 10.6x14mm / 0.42×0.

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