Mapping & Accessories
12" Rolling Parallel Ruler
This handy mapping and drawing tool is ideal for helping you draw
horizontal and vertical lines as well as circles and angles. The ruler
is 12" (30cm) long, and is graduated in 1/16" (1mm) increments with a
pencil hole every 1/2" (1cm). The protractor is graduated in 5 degree
increments from 0 to 180 degrees. The roller is graduated in 1/32"
(1mm) increments and includes various formulas and conversions.
Dimensions: 13" x 2-1/2" x 3/4". Shipping weight 1 lb. Made in Taiwan.
Sand Grain Size Gauge
USGS Set Map Rulers