With metal rollers( for paper)
MAYLINE Mobile Parallel Ruling Straightedges
Perfect for engineering and construction applications.
Every Mayline parallel ruling straightedge begins with a durable, black phenolic laminate base where we inset a transparent blade for see-through registration and fine line quality.
For those who work with a variety of surfaces, we designed a straightedge with retractile, ball-bearing rollers of metal or Delrin(plastic) built right into its base.
They literally float over any surface whether its paper or film.
The rollers come in chrome-plated brass or plastic.
We recommend the with Delrin rollers for use with drafting films.
Above-board mounting hardware included.
EZ Grip has a raised middle bar that makes moving the straightedge easier.
Professional quality, made in the U.S.A.