... Max.Impact Rate:3000/min Rate voltage: 220V Electric pick electric breaker Jack hammer boschpower tools SpecificationsItem NO J1Z-DD-40Rated ... *32*26CM Our products include various armatures and axis,electric drills,electric hammers, marble cutters, angle grinders, trimmers, circular saws ... 12 gear hobbing machines, 5 sets of heat treatment equipment and all kinds of secondary machinery, as well as 8 ...