A carpentry tool is designed for cutting wood; it is a good tool if it cuts well. It consists of a compass of pressed steel with a pencil in one leg or end and a metal point in the other leg. It is used primarily to mark and measure 45 and 90 degree angles. Many variations of combination squares are available, but each has the square, used to measure the accuracy of right angles, as one its components. It is also used for pushing flooring boards into contact on a joist can be operated with one hand, leaving the carpenter's other hand free for hammering. The tool includes a body member having offset clamping lugs for engaging each side of a joist.

Carpet cleaners are designed for spot removal. It consists of a small box. The base of the box has rollers & brushes, connected by a belt or gears. There is also a container for dirt. The arrangement is such that when pushed along a floor, the rollers turn and force the brushes to rotate. The brushes sweep dirt and dust from the floor into the container. Some cleaner is filled with water & commercial cleaning solutions. It clean the carpets by injecting a cleaning solution into the pile, which is then sucked back into the machine with all the dirt and grime from the fibers.