Multi-Specification Allen Key SetThe 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 DurableThese hex keys made of high quality carbon steel with heat treatment and hardening, very sturdy and wear resistant, provide long service life. Precise and easy to useThe tips precision machined parts fit snugly into fasteners, sliding easily into fasteners, reducing allen wrench wear and fastener head damage Long arm design, full use of leverage for a easy to use. Wide ApplicationsAllen wrenches are necessary tools for any DIY enthusiast or professional.They are par made for working on bicycles, furniture, motorcycles, vehicles and more DIY and repair jobs. PortableComes with a case, tidy and organized, convenient to store and carry. Clearly visible size is marked on the shell, making it easy to quickly select the size you want. br> Descriptions: Hex key set, corrosion and rust resistant, sturdy and durable, easy to use. This allows easier access to those hard to reach spaces and makes it easier to adjust at any angle. Storage Chest: 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 in the back to hang your allen keys on your tool shelf or on the wall. Contents Package: 15 x Metric Allen Keys 15 x Imperial Hex Keys