Low cost spiral cutter for use with a handrill, drill press. lathes.

I found this tip in one of my latest issues of a woodworking magazine. The idea looks great, but I haven't made it yet.

You can make a spiral-cutter with the cutting wheel from a wall mounted type of pencil sharpner. Remove the cutter head from the frame of the pencil sharpner then find a long machine screw that will barely slide through the hole of the cutter. Make sure the screw is long enough to have some length left over for chucking in the drill and drill press. Use small diameter flat washers and nuts to hold the cutter in place on the bolt shaft. Use extra nuts as jam nuts because when the cutter's teeth take hold, it may try to " unscrew " the single nut. Also, pay attention to the direction the teeth are going when you're mounting the cutter on the bolt.
This little tool looks good for shaping foam blocks, too. I pulled the body from my wall-mounted sharpener and found out that the cutter is SHARP.