Sadaf Nautical Brass Divider Proportional Engineer Drafting Tool 9" Compass Divider

Proportional Dividers Brass 9 Inch Proportional Dividers Nickel Finish and Steel Sharp Point for Drafting Equipment Scientific Instruments This detailed item is approximately 9 inches point to point and 3/4 inch wide. Among many functions, proportional separators can be used to increase or decrease the length of lines and the diameter of circles, and can be used to inscribe regular polygons within circles (divide the circumference of a circle into equal parts). ) can be done for ) Great piece of drafting equipment - very well made. Because it depends on the person using the object. (For example, if you do not have the short end set at exactly 1 inch and the long end set at 3 inches, you will not have a 3 inch to 1 ratio. Please read the description carefully and review the photos. Contents : solid brass