Park Tool CT-4.2 Master Chain Tools

Product Description

The CT-4.2 Master Chain Tool replaces the CT-4 Master Chain Tool. The CT-4.2 will work with ?hour-glass? shaped 8, 9, 10 and 11 speed chains. Also fits the asymmetrical Shimano chain designs such as Dura-Ace 7900. Specially designed to work with the ti