The most advanced chain tool in our range. Featuring machined body & precisely made spindle threads for smoothness and ease of use. Large handle gives extra leverage and breaks the chain easily. Master Chain Tool features floating chain support for perfect positioning and support of any chain. Works with all derailleur chains from 6–12-speed, is compatible with SRAM AXS chain and works with 1/8˝single speed chains. It also supports Campagnolo’s 11- and 12-speed chain peening. Tool comes with three different interchangeable chain supports; preinstalled is a single link support, available are also a wider double link chain support for extra grip on the chain and a dedicated SRAM AXS chain support. Hidden compartment at the in body of the tool features an additional replacement chain pin. Comes with: Long and short derailleur chain support (compatible with 6–12-speed derailleur chains) Dedicated SRAM AXS chain support Campagnolo chain pin blocker Replacement chain pin Compatible with: All derailleur chains from 6–12-speed SRAM AXS flat top chain Most single speed 1/8˝ chains Campagnolo 11- and 12-speed chain peening