Specifications:*This product Includes 3 Pin Sizes to Fit a Variety of Chains*The Tool which you buy Will Break & Rivet #420-#630 Rear Drive Chains*These tools Includes 2mm， 3mm， 4mm， Replacement Tips For Different Size Cam Chains*Will Break Chains From #35 to #630*For Chain #520 & up， it is Recommend to Grind The Rivet Head .*It was Designed to Rivet Chain Links to Form an Endless Chain or on Cam Chain to Drive.FeatureIt is very good for repairing， splitting & riveting motorcycle chains.Heavy duty mechanism.Easily breaks the chain and rivets back together. Complete Chain Press Tool KitPackage include1set Chain Breaker Riveting Tool