The optional compass center for the Veritas string inlay tool system, used in lieu of the fence, lets the cutter head or pencil holder make circles and arcs with radii from 3/4" to 3 3/4" (up to 9 3/4" with the 10" rods). While not strictly required, using a pin awl (available separately) to define the center mark for the compass head makes it easy to position the compass on the workpiece.
Made in Canada.