CHAIN BREAKER PARK CT-3.3 SCREW TYPE 5-12sp COMPATA 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`, 3 16` and half link chains 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 features an adjustable locating shelf so it works on any width chain to remove and install chain rivets *The CT 3. 3 will