Alumicolor Aluminum Compass Set with Point, Lead, Holder and Rotary Knife for 36 inch to 48 inch Straight Edge Rulers, Silver 4121-1
FITS 30 INCH TO 48 INCH RULERS - Set includes the anchor point, lead holder and lead for drawing circles, and a rotary knife for cutting circles
HANDY TOOL - This beam compass set is ideal for drafting, drawing and even sewing!
CREATE PERFECT CIRCLES - These trammel points makes circles from 1 inch to 36 inch diameter
FINGERTIP CONTROAL - Adjust circle size with fingertip control trammel points
ALUMICOLOR MEANS QUALITY - Alumicolor’s photo anodizing process means calibrations are part of the aluminum and will not clean or rub off
As an alternative to the Compass Rule, the Compass Point Kits can be used with your existing ruler or yardstick. The kits include the anchor point, lead holder and lead for drawing circles, plus a rotary knife for cutting circles. The straightedge size fits rulers that are 1/16" thick. The yard stick size fits rulers that are 1/8" thick.