The Park Tool Chain Tool CT-3.3 is designed for the discerning cyclist who demands precision and durability. With a legacy spanning over 50 years, Park Tool is synonymous with quality, making them the go-to choice for both professional and home bike mechanics. Proudly made in the USA, their tools are recognized worldwide by the signature Park Tool Blue. This versatile and robust chain tool is engineered to work seamlessly with a wide array of derailleur chains, from 5-speed to the latest 12-speed systems, including the cutting-edge SRAM AXS 12-speed. It's also compatible with 1/8, 3/16, and half-link chains, ensuring you have the right tool for any job. The adjustable locating shelf allows the tool to accommodate any chain width, making it easy to remove and install chain rivets with precision. The tool is built to last with durable construction, crafted with an investment cast process.