Carpenter's work involves hammering, which is the use of a tool with a metal head and a handle to drive nails into wood or other materials. Hammering is an essential part of carpentry, as it is used to join pieces of wood together and to shape them into the desired form. It is also used to install hardware such as hinges and locks. Hammering requires skill and precision, as it is important to ensure that the nails are driven in straight and at the right depth.