The Alvin Duraluminum Proportional Divider is a functional tool for many drawing and drafting applications. It is equipped with proportional ratio markings that allow transcribing of drawings using different scales. With a simple adjustment, reductions or enlargements can be transferred from original scale drawings with exacting accuracy (+ 0.1mm for any ratio).
The Alvin Duraluminum Proportional Divider can also be used for dividing lines or circumference of circles into a number of equal parts. It measures 7 ½ inches and features adjustable needle points that can be replaced when needed. Made of aluminum, it is durable and lightweight at the same time making it a perfect compass/divider for students, professionals, and non-professionals.