<p>【Multi-Specification Allen Key Set】 This hex key set provides 30 commonly used sizes in both metric (0.7, 0.9, 1.3, 1.5, 2, 2.5, 3, 4, 4.5, 5, 5.5, 6, 7, 8, and 10 mm) and imperial (0.028, 0.035, 1/2, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, and 3/8) sizes, meeting most needs. 【Sturdy and Durable】 These high-quality carbon steel hex keys are heat-treated and hardened, making them very robust and wear-resistant, offering long-lasting performance. Long lifespan. 【Precise and Easy to Use】Precision-machined tips fit fasteners perfectly, sliding easily into them, reducing wear on the Allen key and damage to the fastener head. Long arm design maximizes leverage for easy use. 【Wide Applications】Allen keys are essential tools for any DIY enthusiast or professional. They are perfect for working on bicycles, furniture, motorcycles, vehicles, and more DIY and repair projects. 【Portable】Comes with a case, neat and organized, convenient to store and carry. The clearly visible size is marked on the case, allowing for quick selection of the size you need. 30-Piece Allen Key Set Compact Case and Professional Metric/Inch Allen Keys: Hex key set, corrosion and rust resistant, sturdy and durable, easy to use. This allows easier access to those hard-to-reach spaces and facilitates adjustment at all angles. Storage case: High-visibility SAE and metric sizes marked on the case will reduce the time spent searching for the correct size Allen key. Use the hanging hole on the back to hang your Allen keys on your tool rack or on the wall. Package contents: 15 x metric Allen keys, 15 x imperial hex keys