SAFCO (Mayline) parallel straightedges are perfect for engineering and construction applications. Every SAFCO parallel ruling straightedge begins with a durable, black phenolic laminate base with a transparent blade for see-through registration and fine line quality.
Established in 1939 as the Engineering Supply Company, Mayline has come a long way from its expertise in drafting tables, blueprints, and straightedges. The war years capitalized on their high quality and precision manufacturing for providing highly accurate navigational and mapping accessories for all branches of the military. Though still a market leader in manual drawing (they invented the straightedge) and large format filing, SAFCO has moved to the forefront of office ergonomics. Quality, durable SAFCO parallel straightedges.