Larger Measuring Scales: these protractors for map adopt larger scales of 1:50,000 and 1:100,000, which make grid spacing more wide, more convenient for your use on different occasions and conditions
Improve Efficiency: the inner side of the protractor set is marked in degrees and the outer side is in mils, easy for you to read in different measurements, making your working and studying more efficient
Suitable Thickness: the topographical maps tools are as thick and hard as credit cards and have a protective coating, reliable to use, have a long service life
Military Standard: this land navigation kit is equivalent to graphic training aid 5-2-12 coordinate scale and protractor (5-2-12), standard version for army protractors
Wide Range of Application: these military rulers are designed for use with MGRS or other coordinate systems, widely suitable for many usages