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 18 and 316 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.