Circle making tool

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A tool for carpentry that when used with a nail, a pencil, and a tape measure can draw circles and arcs from a radius of 1 inch up to that of the length of the tape measure. It can also easily make circles or arcs with a radius of 2 inches up to 12 inches using pencil guide holes that are staggered down the length of the device at one eighth-inch intervals. The tool has two rare earth magnets that hold the tape measure to the tool during use. The magnets can be used also to hold a nail on the tool for storage purposes. In that way, a nail is always available when a circle is needed. For more convenience, one or more bubble levels can be added to the tool making the tool not only a circle tool but a torpedo level as well.