Complete chain tool for most 520, 525 and 530 standard, O-ring and X-ring chainsHardened body, riveting tip and breaker pin for strength and durabilityPerfect for your tool pack if you have a chain with a rivet master linkWill rivet hollow-nose master links (will not rivet solid soft-nose pins)Break, press, and rivet your chain with one compact toolWill push pin completely through link/side plateRemovable handle for compact storage