Lee Valley Incra Rigid Bend Rules

Designed to eliminate parallax errors and used with standard 0.5mm lead mechanical pencils, these rules are perforated with slots or holes just slightly larger than 0.5mm at standard increments.

Etched from 0.008″ thick stainless steel, they have wrap-around slots for marking both faces next to an arris. Non-glare finish.

Made in USA.