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Topeak Super Chain Tool II. High quality long service life cast CrMo steel construction chain tool for single and multi-speed chains up to 13 speed including Campangnolo hollow pin chains. Built-in clip holds tool pieces together. Contains 4 and 5mm Allen wrenches and chain hook.CrMo steel chain tool 4 / 5 mm Allen wrenches steel wire chain hook
Chain hook holder chain pin holder and chain pin breaker