Rotary, demolition, and breaker hammers generate greater hammering force than hammer drills. Rotary hammers drill and chisel concrete and masonry, creating holes and delivering high-impact, low-frequency blows. Also known as SDS drills and combination hammers, they have a hammer-and-rotate mode that spins and thrusts the bit to drill larger-diameter holes in harder materials than hammer drills. Their hammer-only mode chisels and chips for light demolition. Demolition and breaker hammers thrust their chisel at high impact to chip, break, cut, and scrape concrete, masonry, brick, asphalt, and tile. They are dedicated chiseling tools that produce a hammering action for jobs requiring more impact energy than rotary hammers.