CYCLUS TOOLS snap.in cassette tool Z12 23.0 for CAMPAGNOLO 8/9/10 speed and MICHE Campagnolo 9/10/11 speed. For functional use of the tool, the holder (item code: 7202750) and any additional components such as an adapter or guide are required. The use of the snap.in SN-76-F guide (item code: 7202776) is recommended. With this combination of holder, extractor, and appropriate guide, professional installation and removal of the sprocket set can be carried out without slipping or tilting. An additional advantage is that this guide can also be used with other tools from the snap.in family. Observe the tightening torque specified by the manufacturer for each assembly.