When you need to make a very large oval or circle with our #14106 Oval & Circle Jig, you need to extend the radius rod. This is the extension rod you need.

It threads in between the 2 rods that come with the #14106 kit and extends the radius capacity by 19-1/2".

Just like the rods in the kit, this rod is chrome plated and made from a special hard steel to withstand side forces better than normal mild steel.