The Park Tool CT-3.3 Chain Tool is a professional shop quality tool that works with virtually any single or multi-speed chain. It is made to easily install or remove chain rivets for chain sizing and replacement. A floating locating shelf makes it possible to use with any width of chain. A comfortable handle makes it easy to use while steel construction will give you years of use. The driving pin is replaceable as well for added convenience. The Park Tool CT-3.3 Chain Tool is a great addition to your tool box.