Description The Icetoolz Crank Puller Octalink/ISIS is a cotterless crank extractor with a socket wrench for ISIS and Octalink cranks. Which means it works for basically all types of cranks. This IceToolz crank puller for dismounting the crank arm is made of Cr-Mo steel. The crank puller is equipped with an 8mm Allen key and a combined 14mm-15mm socket wrench. The crank extractor plus cap is therefore also suitable for the hollow shaft. 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 head bolt. On others, the 14mm (or 15mm) nut is hidden behind a decorative cap. For all cases, the right tool is this crank puller. The crank puller itself is equipped with an extra (orange) cap for when a hollow shaft is used. Icetoolz Crank Puller Octalink/ISIS Specs Crank tool Compatible with cotterless cranks Compatible with Shimano Octalink & ISIS Drive Supplied with a socket for fitting on to a driver IceToolz product number 04D2 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.