When you're ready to use your circle cutting jig, you need to know the desired radius of the circular piece needed for your woodworking project.
To use the jig, you'll need a 4d finish nail.
With a power drill you'll want to drill a hole (slightly narrower than the nail) in the center of the piece of stock being cut. Ideally, this hole should be positioned at the radius distance from one of the edges of the piece of stock. Unless the project will need a through hole in this location, you'll only want to drill the hole partially through the stock, no more than 1/4" deep.
Next, you'll need to drill a similar hole in the jig on the center line you scribed in the last step. Measure the length of the desired radius from the band saw blade and make a pencil mark on the center line to denote the pin position. Then, drill a hole with the same bit you used on the stock, but all the way through the jig's table.
Once the hole is drilled, tap a 4d finish nail up from underneath the jig through the hole until it is nearly 1/4" above the table.
Align the stock with the hole on the pin and the edge against the band saw blade. Tap the stock down onto the pin until the it is flat on the jig's table.


