Grifhold
108 Yardstick Compass

Polished aluminum trammel points, 3 1/4 in. x 3/8 in., for cutting and scribing circles and arcs. This lightweight compass fits a standard soft wood yardstick, with slots that measure 3/16 in. wide and 1 3/8" in. deep. One point includes permanently fixed pivot pin, the other a replaceable pencil lead in a four jaw chuck. To use as a circle cutter, replace lead with #24-F blade, sold separately.