6-in-1 Universal Construction Key, Construction Equipment Key Set, Master Key for All Locks, Construction Key with Cylinder Length Measuring Scale (1 pc) Pointed

HIGH QUALITY AND ROBUST: Our master construction key is made of high-quality zinc alloy, which is corrosion-resistant and has high hardness. It is resistant to most acids and other corrosive substances. Heat treatment and hardening ensure a longer service life.

Practical proportions: The universal key has three functions. Behind the square Allen key, there is a convenient scale for measuring cylinder lengths from 25 to 75 mm (25-30-35-75). It is easy to use and ideal for checking heating valves or opening ventilation grilles.

MULTIFUNCTIONAL USE: Universal door opening tools are widely used. The pointed hexagonal socket wrench is used to loosen or secure door handles. The universal construction key is an ideal aid as an electrical cabinet key or when door handles are not yet installed.