Description The IceToolz Hex Key Set is a neat little Allen wrench set including 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, & 8mm keys. The IceToolz Allen key set contains all the necessary Allen keys used in the bicycle industry. The Allen set is a compact and complete set with a button head where practical and necessary. The 8mm version is realized by placing the orange cap on the 6mm version. The chrome-vanadium quality guarantees a long service life (detail on what CR-V is below). About IceToolz IceToolz is a brand that focuses on both the professional and the (better) do-it-yourselfer in the bicycle industry. But the ordinary cyclist also comes into the picture with handy maintenance products and easy-to-use items. IceToolz is a brand where you can find those things that make your hobby as a cyclist, mechanic or as a bicycle professional easier. IceToolz: the choice of professionals and do-it-yourselfers! What is Cr-V? CR-V is the abbreviation of chromium vanadium; is a type of steel which is an alloy between steel, carbon, chromium (around 0.8%), vanadium (around 0.1%) and some smaller amounts of other metals. This is possible in a proportion that can deviate slightly, but this ensures that the steel becomes hard and is better protected against corrosion. Chrome vanadium is one of the most widely used steels in tool making.