Features: Versatile, light and super compact chain tool for adventure touring and long distance trail riding 6061 billet aluminum body, complete tool weighs only 230 grams (8 oz) Will break 520, 525, and most 530 chains and master links (maximum link width of 20 mm) Included steel press plate for removing and installing clip style press-on master link plates Innovative dovetail closure provides ease of use and superior strength Hardened steel thread insert on body provides strength and durability Includes durable cloth pouch for easy transport on your adventure Requires use of a 12 mm and 14 mm wrenches (not included) Does not rivet master links. We recommend using the Motion Pro PBR Chain Tool PN 08-0470 if you have a rivet style master link Patent Pending