When drilling into concrete what is the difference between a hammer drill and a rotary hammer?
Hammer drills receive their hammering action from two cams striking each other. A rotary hammer is electro-pneumatic, getting its hammering energy from air pressure. Hammer drills are best used for setting small anchors in unreinforced concrete, as well as stucco, masonry, and block wall. Rotary hammers are engineered for use on both reinforced and unreinforced concrete, as well as stucco, masonry, and block wall.
