Park Tool  CT-7 Screw Type Chain Tool

The CT-7 Chain Tool is specifically designed to work on the wide and tall 3/16” BMX/freestyle chains now becoming popular. The CT-7 also works on 1/8” BMX/freestyle chains with outer plate width 7.4mm or more. Made from investment cast steel for strength and durability, the CT-7 has a replaceable driving pin (part CTP), a fine thread, and a comfortable handle. Please note: The CT-7 will not work on 3/32” derailleur or 3/32” BMX chains.