A professional quality shop chain tool that works on single speed as well as 5-12-speed Road and Mountain Bike derailleur chains, including SRAM® AXS 12 speed. 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. The CT-3.3 will install, but not peen, Campagnolo® 11 and 12-speed chain rivets. Made in the USA and covered by Park Tool's legendary limited lifetime warranty