Park Tool CT-4.3 MASTER CHAIN TOOL 5-12 Speed with Peening

Park Tool CT-4.3 Master Chain Tool w/Peening  Park CT-4.3 Chain Tool. Specially designed to work with the tight tolerances and narrow profiles of 10- 12-speed chains, but also works on 1/8"" and older derailleur chains. Integrated Link Pocket ensures precise alignment Replaceable, rotating pin Includes peening anvil that allows for peening of Campagnolo11-speed chains, which pivots out of the way when not in use Compatible with Sram Eagle hollow pin chains 1/8", 5-12 speed chain tool