The rotary hammer drill gets its name from the rotary mechanism that moves the hammer in a circular motion, and combined with the powerful forward hammering action, it can drill and bore holes into masonry, ceramic tiles, brick and thick concrete.
Rotary hammers are used by many construction professionals because of the extra drilling and pulverizing action the drill supplies and also shock-absorbing qualities.
The are two main types of rotary hammers available on the market: the ordinary rotary hammer and the SDS rotary hammer.