Performance Tool W89100 Chain Breaker Riveting Tool This kit will break, press, and rivet most #25 - #35 and #428 - #630 standard and O-ring roller chains. Includes 3 pin sizes to fit a variety of chains The hardened steel body has a removable handle for compact storage Blow moled case for easy storage and to protect from loss Use this heavy duty chain breaker to repair your motorcycle or bicycle chains with strength and ease New Design to Adjustment Bolt to ensure proper mill integrity