6 ½" Alvin Speed Bow Compass & 6" Divider Draw 12" Diameter Circles

Alvin 6½" compass with speed bow rapid smooth-action adjustment. Constructed of cast zinc with black fiberglass crown the bow compass features double knee joints for parallel leg positioning and precise drawing of large circles and arcs. With compass draw circles and arcs up to 12" diameter. Also includes Alvin 6" gearhead divider that includes adjustable and replaceable needle points. The bow compass and divider are packaged in hard, see-through plastic case with spare lead; shipping weight 0.50 lb. shipping dimensions 8.00 x 3.00 x 0.80 inches