8MILELAKE Motorcycle Cam Drive Chain Breaker Riveter Rivet Riveting Cutter Tool For Breaking and joining most drive chain from 35-630 This tool will break and rivet 420-630 rear drive chains. For chain #520 and up, it is recommend to grind the rivet head Pin Guides 2.2mm Upper and 2.2mm Lower and Riveter Pin Be used on cam chain to drive chains or as a chain breaker by pushing the pin out