Are you looking forward to buy a new rotary hammer? Drilling into concrete or masonry can be difficult work, but if you own a rotary hammer drill then the work will go much easier. These handheld power tools make quick work of brick, stone, cement blocks, and concrete. You may find them under names like masonry drill, hammer drill, or roto hammer drill but we will refer to them as rotary hammers. These pistol grip tools create an impact force through the use of a weight. The Slotted Drive System (SDS) holds the carbine tipped bits and "thrusts" them into the material. The rotary hammer can be used to drill holes or to chisel and scrape when on hammer mode only. Some people want to know what the difference between a demolition hammer and a rotary hammer. Demolition hammers are more powerful (35% more) than rotary hammers and they really "pack a punch" as experts say. When looking to demolish masonry or concrete structures, the demolition hammer can provide the powerful blows that a rotary hammer just can't do. In terms of power from low to high you have the hammer drill, rotary hammer, and then the demolition hammer. Each job will vary so perhaps you might need all 3 tools to be efficient when working.