Demolition and breaker hammers use a chisel to chip, break, cut, and scrape concrete, masonry, brick, asphalt, and tile with a high-impact chisel. They're chiseling instruments with a hammering action for operations that require more impact energy than rotary hammers. With demo hammers performing lighter, targeted chiseling and breakers delivering heavier blows, their impact energy increases as the tool's weight class increases. Long run times for repetitive jobs, full power while operation, and no batteries to recharge are all advantages of corded hammers. Cordless hammers work in places where there is no access to wired power, eliminate the tripping hazard of a cable, and are powered by brand-specific batteries.