Description Chain Breaker & Riveting Tool Versatile enough to be used on drive chains and some cam chains Will break chains from #35 to #530 For chain #520 and up, it is recommended to grind the rivet head Each kit includes 3 pin sizes to fit most chains (2mm, 3mm, 4mm) Investment-cast, hardened body and redesigned body bolt Recommended for light to medium-duty use For riveting hollow nose master links only Kit includes press plates