Ideal for blueprints, map scaling, and drawing. Determines distances in
miles or kilometers on maps and plans according to scales indicated on dial.
Assures precision measurement forward and backward and follows curved lines.
Precision metal gears are reset by revolution counter. Convenient handle for
easy maneuverability. Two large, easy-to-read dials with unbreakable plastic
faces. White dial graduated in inches and centimeters (36" = 92cm). Yellow
dial graduated in 1/2", 1/4", 1/8" and 1/16" to the foot. Includes
leather-like vinyl pouch for protection.