This multifunctional key set is great for accessing and servicing elevator cars, radiator valves, and electric control cabinets. The triangular lock socket design ensures a secure fit, allowing you to easily open and close locks without slipping. Whether you're a plumber, electrician, or maintenance worker, this key set provides the reliability and convenience needed for efficient work. Features -Color:Silver -Material:Zinc alloy -Size: 5.50X4.00X1.20cm/2.16X1.57X0.47in -durable material: constructed from durable metal, this triangular wrench key is built to withstand heavy use and provide longterm reliability. -Safety and security: designed with a triangular lock socket, this key ensures that only authorized users can operate it, enhancing safety and preventing . -Convenient valve handling: this metal triangular cabinet wrench key is great for managing various valves, making it a for professionals. -Extensive use: ideal for use in elevators, switch cabinets, , distribution cabinets, control cabinets, and mechanical equipment, this key is highly . -Powerful performance: the solid handle of the inner triangular wrench key offers strong torque and excellent wear resistance, ensuring efficient performance in tough conditions. Package list: 5pcs x triangle lock sleeve key