DecorDwell Universal Building Key, 6 in 1 Construction Master Key 3mm Hexagon Socket with Scale 6/7 / 8 mm Square Control Cabinet Key Measuring Tools, Locksmith Pick Key to Open Mortise Cylinder Lock

• 【High Quality】Our construction master key is made of a high-quality zinc alloy, corrosion-resistant and high hardness. it can resistant to most acids and other corrosive agents. And after heat treatment and hardening treatment, make it use longer.
• 【Useful Scale】Practical scale behind a square hexagon wrench for measuring cylinder lengths of 22-75 mm. Laser engraved. The scale is accurate, the writing is clear, and it is not easy to wear, provides an accurate measurement.
• 【Square Mandrel Key】Architect's key with cylinder locking nose for mortise lock, no profile cylinder in the outer housing structure. 3 square keys, sizes 6, 7 and 8 mm. for checking heating valves or opening ventilation grilles.
• 【Hexagon Key】This universal construction wrench has a 3 mm Allen key at the tip and a short gear with a flat cam. For loosening or fastening doorknobs. Switching cabinets and service flaps can also be opened effortlessly.
• 【Multi-function】 The key to a new building is the rescue tool, especially in the shell construction. The building key is the ideal aid as a control cabinet key or if no door handles have yet been installed. It can also be used as a multifunctional bottle opener.

Material: Zinc alloy Size: 20 x 6.8 cm Package Including: 1 * Universal Construction Key Features: Zinc alloy die-casting, chrome plated surface, durable and safe, anti-corrosion, easy installation, strong and durable. To be able to measure the required lock cylinder size. We have set the practical scale of the building key to be 22-75 mm. The square mandrels have angular lengths of 6, 7 and 8 mm. A measuring ruler with which you can better measure the angle of the contour cylinder. Suitable for ventilation technology, air conditioning, control cabinets, windows, doors, rubbish bins, air supply, water supply, locking systems, building technology, electrical engineering locking systems, etc.