Master Every Project: This set includes 18 different sizes. 9 SAE Allen wrenches: 1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 1/4", 5/16", 3/8" and 9 Metric Allen keys: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm. Perfect for bicycles, furniture and electrical repair applications Premium Material: The Allen wrenches are made of chrome vanadium steel (Cr-V) with chamfered edges and a mirror chrome finish. The combination of high-quality materials and advanced processes ensures optimized durability and improved user experience Efficient Design: These hex keys feature a ball-end design for multi-angle access and reduced wear, making them ideal for tight spaces and hard-to-reach fasteners Quick-Use Features: Laser-etched size markings on each hex wrench provide quick identification, plastic slots with labeled positions ensure organized storage and immediate availability Folding Storage Design: Each Allen wrench set is compact and foldable for easy carrying and saving tool box space, and each set has a hanging hole for wall-mounted storage and quick access. 18PC Hex Key Set - SAE/MM