It's a guide arm that attaches to a jigsaw to aid in cutting straight lines or circles. <P>When cutting a circle, you use the rip fence like you would a compass: a point stays anchored in the ...

A pencil, a jigsaw, a router can all work well to make a circle with a trammel arm jig. I used to dread making circles until I found out I could attach my wood router to a jig.

AMAZING tool! Unique Homemade Jigsaw Attachment Welcome to our channel ideas corner A Creative Workshop Our channel including of guiding videos: HOMEMADE TOOLS LIFE HACKS HOW TO MAKE TOOLS NEW AND ...