The hardened steel tool on the Fabric Chain splitter can break 8, 9, 10, 11 & 12 speed chains. The Fabric Chain Tool is an elegant, steel hardened chain breaker with a replaceable and reversible pin. A detachable pin can be removed, replaced, and reversed, offering extra longevity to the most important part of the tool. Suitable for use with chains from 8 to 12 speeds, it is versatile too. The curved, ergonomic styling makes it comfortable in the hand.