Qbace Chain Cutter Breaker and Riveting Rivet Tool Set, Atv/bike/motorcycle/cam Drive-sizes 428/520/530 Portable And Easy To Carry Includes 3 Pin Sizes To Fit A Variety Of Chains Will break chains from #35 to #630 (griding rivet head recommended). 3 pin sizes to fit most chains - 2mm, 3mm, 4mm Investment-cast and hardened body for light to medium duty use. They have misdrilled chain presses and weak pins and anvils.