Alumicolor 18" Compass Rule

This 18" compass rule set includes the shaft, anchor point, lead holder and lead all in one package. Automatically measure radius, area and circumference. Calibrations are in inches on one side and metric on the other. This compass features ultra smooth edges and a solid feel without flexibility. The anodized finish gives a satin like feel, while the photo anodized calibrations are permanent and will not clean or rub off.