Made of Solid Steel These hex keys are made of premium quality, heavy-duty chrome vanadium steel to withstand tough working conditions and high force levels. The precisely sized end is chamfered for easy sliding into fasteners, reducing wrench wear and damage to the fastener head. Easy to Use The tools have been designed for maximum ease of use, including long arm wrenches that allow extra reach and leverage so you can get the torque you need to undo the tightest fasteners. Compact Folding Storage Box Included A compact folding case makes it easy to access the tools, and the high-visibility SAE and metric sizes marked on the case will reduce time spent searching for the correct size wrench and increase overall project efficiency. You can carry the set anywhere and keep all the Allen keys in order after your work! Wide Range of Uses This 30-piece hex key set completely covers all hex screws and contains SAE and metric long and short arm measurements for unlimited applications in the home, garage, and garden. As its beautiful appearance Number of pieces delivered: 1 set (30 pieces in total)luckymeet