4-Way 5-Key Triangle 7-18mm, Universal Square Key for Electric Gas Water Meter Cabinet Box

4 Ways, 5 Sizes: The triangular key has 5 different sized triangles. These 5 internal triangular keys of varying sizes can be used with 99% of triangular locks, triangular valves, and triangular screws on the market. It is functional and can be applied according to size and shape. Material: The universal utility model key is cross-shaped, made of high-quality zinc alloy, strong, durable, and difficult to break, ensuring long-term use. Easy to Carry: The conveniently sized triangular key can be carried with you or put in your bag. A hole in the middle of the cross key allows you to easily attach it to a keychain for convenient transport. Widely Used: The triangular key can be used as a box wrench and can also be used to tighten screws, suitable for valves of various shapes, trains, cabinets, elevators, water valves, gas valves, and more. Multifunctional: The universal key can open many things; as long as its size and shape match, it is multifunctional and can also be used as a wrench for turning screws.