Material: chromium molybdenum. The heads are fully hardened with heat treatment, chrome-plated according to EN12540 standards, manufactured according to DIN 896 standards (only metric). The key is forged from high-quality chromium-vanadium steel.

It is distinguished by its excellent hardness, durability, and surface protection, offering the user reliable and long-lasting use. It is a comprehensive solution for screwing bolts and nuts, an essential tool for professionals and DIY enthusiasts.

With special safety cutting, the keys prevent damage to the corners and edges of screws and nuts by distributing the force evenly over the surface, away from the outer lines of the nut or bolt head, instead of applying force directly onto the edges.

The latest technology design gives Unior keys the ability to ensure precise power transfer.