MOTORCYCLE CHAIN REMOVAL TOOL, 420-530 Material: Iron Fits chain sizes 420, 428, 520, 525, 528,530. Replaceable press pin is heat treated and hardened Please be sure to verify that the push pin is aligned properly with the chain pin. It is recommended to grind off the chain pin head before using this tool. This will significantly reduce the load on the tool and help prevent premature wear or damage to the breaking tips.