PBR Chain Breaker - Indexing letters on movable anvil and body ensures correct tool configuration; simply line up the letter on the anvil to the letter on the body to get the configuration needed - Versatile design will remove chain pins, press master-link plates and rivet hollow nose and soft nose (quad stake) master link pins on O-ring and non O-ring type chains - Will press, break and rivet 520, 525 and 530 chains with one convenient tool - All components conveniently store on tool when not in use - May be supported in a vise or held with included handle - Great for the professional technician or DIY mechanic - Compact and light enough to carry in a tool bag for trailside repairs - PBR = press, break, rivet