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The Alvin Paral-Liner Straightedge Parallel Bars are perfect for drafting, engineering and construction applications.
Perfect for engineering and construction applications. Every Mayline parallel ruling straightedge bar begins with a durable black phenolic laminate base where a transparent blade is inset for see-through registration and fine line quality. For...
A deluxe version of the popular Alvin Paral-Liner series, with an integral comfort grip bar to control straightedge movement.
Mayline Mobile Parallel Ruling Straightedges with NO ROLLERS offer the E-Z Grip cap which provides simple, fingertip movement of straightedge. Above board mounting hardware included. DEW Recommends the Mayline Straightedges with Derin Rollers. ...