Drills are one of the most versatile tools in any handyperson’s toolkit. They can be used for everything from making precise round holes in walls to driving screws into wood. The most basic is the standard drill, which consists of a motor that turns a drill bit held in place by a chuck. The drill speed can be adjusted by changing the position of a switch, and most drills also have a reverse function for removing screws or drilling out stubborn knots in the wood.

Source: The Good Life Center