Zinc Alloy Architect Key Multifunction Square Key Universal Construction Key with Allen Key Anti-corrosion Architect Key for Measurement

【Corrosion Resistant and High Hardness】: Our universal construction key is made of high-quality zinc alloy. Thanks to the shiny nickel coating, the universal key is extremely durable. It has the ability to prevent corrosion and resists most acids and other corrosive agents. And after heat treatment and hardening treatment, it can be used longer. 【Clear Scale Easy Measurement】: Practical scale behind a square key for measuring cylinder lengths from 25 to 75 mm. Laser engraved. The scale is accurate, the writing is clear, and it is not easy to wear, which effectively prevents corrosion and provides precise measurement for your long-term use. 【Square Spindle Key】: Architect's key with cylinder locking nose for PZ mortise lock, no profile cylinder in the outer structure of the housing. 3 square keys, sizes 6, 7 and 8 mm, for checking heating valves or opening ventilation grilles. 【Allen Key】: This universal architect key has a 3 mm Allen key at the end and a short gear with a flat cam for loosening or tightening door handles. Control cabinets and service flaps can also be opened effortlessly. 【Multifunctional Construction Key】: The architect's key is a measuring ruler used to measure the angle of the contour cylinder. The key to a new building is the rescue tool, especially in shell construction. The construction key is the ideal aid as a control cabinet key or if no door handle has yet been installed. It can also be used as a bottle opener.