The REGINA Universal Chain Breaker Type 1 is designed to handle chains of sizes 3/8'', 1/2'', 5/8'', and 3/4''. This tool is a practical addition to any toolbox, ensuring that you can easily and efficiently manage chain maintenance and adjustments. Built with durability and precision in mind, the REGINA Chain Breaker Type 7 Workshop Edition is perfect for both professional mechanics and DIY enthusiasts. Its robust construction ensures long-term reliability, while the ergonomic design allows for comfortable and easy handling. Whether you're working on bikes, motorcycles, or machinery, this chain breaker is indispensable for any mechanical task involving chains.