Cycle With Style Chain Breaker - Extractor Pins Cam Chain Cutter Riveting Rivet Tool for Chain Size 520 to 630 CONSTRUCTION - this chain breaker is constructed of solid iron. EXTRACTOR PINS - Three different extractor pins are included SIZE - Will fit 520 to 630 chains PRESS PLATE - Fits sides to proper depth, either clip or rivet type STORAGE - Comes with convenient carrying case for easy storage when not in use.