Includes Premium Puller and Breaker | Roller Chain Breaker can break chain sizes: #25, #35, #41, #40, #50, #60, 05B, 06B, 08B, 10B, #410, #43, #65, #415, #42, #415H, #420, #423, #428, #428H, #520, #530 | Roller Chain Puller Holder for Chain Size #25, #35, #41, #40, #50, #60, 05B, 06B, 08B, 10B, #410, #43, #65, #415, #42, #415H, #420, #423, #428, #428H, #520, #530, | Works with just about any chain with the pitch ranging from 0.25" - 0.750" | Brand New, Satisfaction Guaranteed