6" Alvin Gearhead Combination Compass Divider

The 6” Alvin gearhead compass divider features a self-centering gear head mechanism for drawing circles and arcs up to 19" in diameter. The compass is constructed of cast zinc with black fiberglass crown for added durability and strength. Change the compass into a divider by replacing the pencil point with a needle point and use for measuring. The needle and pencil lead are replaceable on one leg of the compass, the other leg has a fixed non replaceable needle point. Comes with 2mm compass lead and needle point, packaged in plastic case with spare lead. Shipping weight 0.20 lb, shipping dimensions 7.00 x 1.50 x 0.80 inches