* A professional quality shop chain tool that works on 5-speed to 12-speed Road and Mountain Bike derailleur chains*, including SRAM® AXS™ 12 speed, as well as 1/8” and 3/16” chains* The CT-3.3 features an adjustable locating shelf so it works on any width chain to remove and install chain rivets* Built to last and easy to use, the CT-3.3 features a comfortable handle, investment cast steel body and replaceable driving pin (#CTP)* The CT-3.3 will install, but not peen, Campagnolo® 11 and 12-speed chain rivets