Military protractor 6" - Accurate 6" RA Mils card reader protractor - This is a high quality, accurate angle measuring device.? - Issued to military commanders to plot highly accurate 6-digit and 8-digit map coordinates and directions / bearing - Very useful tool for all levels of map reading and outdoor activities. - 5 cm RA Mils protractor made to military standard - Supplied with hard coating and string - Graduations are in Mils (not degrees) - Dimensions: 15cm x 9.5cm (5.9 x 3.7 inch)