9 inch Proportional Divider Engineer Drafting Tool 9 INCH Scientific Steel for Sale

On eBay Now...

9 inch Proportional Divider Engineer Drafting Tool 9 INCH Scientific Steel For Sale

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

9 inch Proportional Divider Engineer Drafting Tool 9 INCH Scientific Steel:
$31.72

Brass 9 in. Proportional Divider Steel End For Sharp Point This detailed item measures approximately 9 inches Point To Point and 3/4 inch wide. Among several functions, proportional dividers can be used to increase or decrease lengths of lines and diameters of circles, and can they be used to inscribe regular polygons within circles (dividing the circumference of a circle into equal parts). Fine piece of drafting equipment-very well made. NOTE: No guarantee on the accuracy, as this depends on the person using the item. ( for example if you do not have short end set at exactly 1 in and the long end set at 3 in you will not have a 3 in to 1 in ratio
Brass 9 in. Proportional Divider Steel End For Sharp Point This detailed item measures approximately 9 inches Point To Point and 3/4 inch wide.
Fine piece of drafting equipment-very well made. NOTE: No guarantee on the accuracy, as this depends on the person using the item. ( for example if you do not have short end set at exactly 1 in and the long end set at 3 in you will not have a 3 in to 1 in ratio
Among several functions, proportional dividers can be used to increase or decrease lengths of lines and diameters of circles, and can they be used to inscribe regular polygons within circles (dividing the circumference of a circle into equal parts).
Size : 9 inch, 22.9 cm Approx
Material : Brass & Steel