Description The IceToolz Cotterless Crank Extractor is a crank puller for removing your crank arm. Made from Cr-Mo steel this crank puller is equipped with an extra cap for use with a hollow shaft. And it works with almost all types of cranks. including Shimano Octalink & ISIS Drive. This crank puller is a handy compact tool to remove the crank from the bottom bracket. 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 tool is available with this IceToolz puller. This crank puller is equipped with an 8mm allen for the first one mentioned. The extra (orange) cap is required if a hollow shaft is used. IceToolz Cotterless Crank Extractor Specs Crank tool Compatible with cotterless cranks Compatible with Shimano Octalink & ISIS Drive IceToolz product number 04C2 Cr-Mo steel construction 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.