This is an electric drill that offers a hammer-like action via rotation motion. This allows it to demolish hard materials like wood and stones. This machine is like a screwing drill but does nothing similar to that. The clutch on the head of the drill allows it to punch head In and out repeatedly. The punch may be slow in motion, but the thousand of blows within minutes enable the drill to be used on brick and concretes. This is not just for home use, but an essential tool for any industry.quality drill hammer.