Versatile enough to be used on cam chain to drive chains or as a chain breaker by pushing the pin out. Hardened steel body construction, designed to rivet chain links to form an endless chain. Professional chain breaker cutting riveting tool kit, completely meet your needs. This tool will break and rivet 420- 630 rear drive chains, it comes with 2mm, 3mm, 4mm, and replacement tips for different size cam chains. Used on cam chain to drive chains or as a chain breaker by pushing the pin out, breaks and rivets stakes all over head cam chains on all model Japanese and European OHV Cam, this chain breaker kit includes 3 pin sizes to fit a variety of chains. See more product details Versatile enough to be used on cam chain to drive chains or as a chain breaker by pushing the pin out. Hardened steel body construction, designed to rivet chain links to form an endless chain. Professional chain breaker cutting riveting tool kit, completely meet your needs. This tool will break and rivet 420- 630 rear drive chains, it comes with 2mm, 3mm, 4mm, and replacement tips for different size cam chains. Used on cam chain to drive chains or as a chain breaker by pushing the pin out, breaks and rivets stakes all over head cam chains on all model Japanese and European OHV Cam, this chain breaker kit includes 3 pin sizes to fit a variety of chains.