【Multiple Specifications Allen Key Set】The hex key set provides 30 commonly used sizes with 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), will meet most needs.【Sturdy and Durable】These hex keys made of high quality carbon steel with heat treatment and hardening, very sturdy and wear-resistant, provide a long service life.【Precise and Easy to Use】Precisely machined tips fit tightly into fasteners, sliding easily into fasteners, reducing wear on the Allen key and damage to the fastener head. Long arm design, full use of leverage for easy operation.【Wide Applications】Allen wrenches are necessary tools for any amateur or professional DIY enthusiast. They are perfect for working on bicycles, furniture, motorcycles, vehicles and more DIY and repair work.【Portable】Comes with a case, neat and organized, convenient to store and carry. The clearly visible size is marked on the shell, which can quickly select the size you want.30 Pcs Allen Key Set Compact Case and Professional Metric/Inch Allen Key: Hex key set, corrosion and rust resistant, sturdy and durable, easy to use. Which allows easier access to those hard-to-reach spaces and makes it easier to adjust 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 wall. Package Contents: 15 x Metric Allen Keys 15 x Imperial Hex Keys