Description The Icetoolz Crank Tool is a cotterless crankarm extractor which works with Shimano Octalink & ISIS Drive. This IceToolz crank arm remover combination tool is an all-in-one tool for dismounting the crank arm. The tool is equipped with an 8mm Allen key, a 14mm-15mm socket wrench, a crank puller plus cap for the hollow shaft and a handy handle, long enough to apply sufficient force. This IceToolz crank remover uses both Cr-Mo steel and Cr-V steel. IceToolz extractor plus crank puller for almost all types of cranks. On some bicycles, the crank is secured with an Allen bolt. On others, the 14mm (or 15mm) nut is hidden behind a decorative cap. For all cases, the right tools are available with this IceToolz remover. The crank puller itself is equipped with an extra (orange) cap for when a hollow shaft is used. 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-Mo? Cr-Mo is the abbreviation of chrome molybdenum steel. A type of steel that is widely used in tool making because Cr-Mo has the properties that make the crank puller impact resistant and rigid. Would be a shame if the force applied to the crank puller is lost in bending the material. Cr-Mo is also widely used in cars, racing cars and motorcycles where the demands on the material are high. 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.