How to Scribe a Large Line Around a Hole
- 1). Hold a measuring tape across the middle of the hole. Make two dots with a pencil to mark the diameter of the circle you want to scribe.
- 2). Drive two nails into the holes with a hammer. Don't drive the nails all the way; leave about 1 inch of the body protruding from the surface.
- 3). Position a squaring tool against the outside edges of the nails so the "V" faces the middle of the hole. Position your pencil against the inside edge of the corner on the squaring tool.
- 4). Move the squaring tool from one nail to the other while holding the pencil against the surface. Touch the squaring tool to the outside edges of the nails the whole time. As you move the squaring tool, the pencil will draw a circle.