A battering device is a tool used for striking or hitting an object or substance repeatedly to break it down or deform it. There are several synonyms for battering devices, such as hammer, mallet, club, cudgel, and bludgeon. A hammer is a tool with a heavy head and a long handle, used for pounding nails or breaking things apart. A mallet is a hammer with a large, usually wooden, head, often used for striking chisels or driving wooden pegs. A club is a short, heavy stick used as a weapon or for striking something hard. A cudgel is a heavier and longer club, usually made of wood. Finally, a bludgeon is a thick stick used for hitting or beating something brutally.