Complete chain tool for most 520, 525 and 530 standard o-ring chains. Break, press and rivet your chain with one compact tool. Will rivet hollow nose master links (will not rivet solid soft-nose pins) Will push pin completely through link/side plate. Hardened body, riveting tip and breaker pin for strength and durability. Removable handle for compact storage. Perfect for your tool chest if you have a chain with a rivet master link. 1 year limited warranty.