The Park Tool CT-3.3 Chain Tool is a professional-grade chain breaker designed for 5- to 12-speed chains, including SRAM, Shimano, and Campagnolo. Featuring a screw-type design, it provides precise pin removal and installation with minimal effort. The hardened steel pin ensures durability, while the comfortable handle and solid construction make it ideal for both home mechanics and professional workshops. Perfect for chain maintenance, repair, and replacement, the CT-3.3 is a must-have tool for any bike enthusiast