This folding hex key set is designed for durability and longevity. It features a sturdy aluminum handle that is ergonomically designed for comfort and a secure grip while tightening screws and bolts. The hex keys fold for easy access and convenient storage. Each hex blade is made from S2 steel and finished with a black oxide coating to enhance corrosion resistance. The set includes 1.5, 2, 2.5, 3, 4, 5, 6, 8mm