In some places, the name "hammer" is derogatory, so it is replaced by a hammer. Secondly, the shape of a hammer is different from that of a hammer. Hammer is named because it looks like a wolf's head, but it doesn't look like a wolf's head. In addition, the size of the hammer is larger than that of the hammer. Finally, in some places, the hammer refers to the hammer that splits the leg, and the scope of the hammer is very wide.

Generally speaking, a hammer, like a claw hammer, can be collectively called a hammer, which is a kind of hammer.