General description This Stanley Pro-Series Foldable Hex Key Set includes seven foldable hex keys made from high tensile chrome-vanadium steel, designed for tightening and loosening tasks. The keys feature a quick-release mechanism for easy use and are suitable for various DIY and home improvement projects. Their compact design makes them ideal for portable toolkits, and the reinforced composite handle ensures durability. Each key size is clearly marked for easy identification. Technical specifications Material: Chrome-vanadium steel Number of keys: 7 Key sizes: 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm Features: Quick-release mechanism, foldable design, marked sizes Compatibility and accessories Compatible with standard hex screws and bolts Installation No installation required; simply unfold the desired key size for use Usage Use for tightening or loosening hex screws and bolts Ideal for assembling furniture, bicycles, and other DIY projects Other information MPN: