A "pair of compasses".
A compass.
A compass.
It is a pair of compasses
A tool called a "hole saw" is commonly used to cut circles in wood.
A compass is a geometric tool used to draw circles.
To draw circles you need to use a compass
A compass
A compass
A compass
Most of the time, a tool called a "compass" is used to draw perfect circles. This compass is not to be mistaken with a directional compass.
A compass
A pair of compasses.