The hex key set includes ten high-quality keys ranging from 1.5 mm to 10 mm, made from durable CrV steel. These keys are specifically designed for use in tight and hard-to-reach areas, making them an essential tool for various applications in mechanics and craftsmanship. The precise workmanship ensures an optimal fit and prevents slipping during use. The set comes in a practical packaging that allows for easy storage and quick access to the needed size. The use of CrV steel guarantees high strength and durability, so the keys maintain their shape and functionality even with intensive use. This hex key set is ideal for professional craftsmen as well as DIY enthusiasts who value quality and reliability.