Eliminates Smudging:
Elevated slightly above the surface of the drawing table, Spiroliner does not contact the surface of the drawing. It glides on wheels located at each end of the structural extruded aluminum blade. No rollers in the bottom of the blade to smudge or damage your drawing.

Removable Replaceable Transparent Ruling Edge:
The extruded acrylic ruling edge accommodates technical and ruling pens, lead pencils, felt tipped pens, etc. The acrylic edge is replacable

Nick-Proof Cutting Edge:
The structural aluminum Spiroliner blade has a durable hardened anodized surface providing a cutting straightedge which is virtually "nick-proof." Relocate the transparent ruling edge to the lower groove of the blade to expose the metal cutting edge.

Dual Brakes:
Two brakes are standard on all Spiroliners. Use one to prevent parallel rule from sliding down inclined board surface -- locking the other brake frees both hands for drawing.

Table Attachment:
Top mounts, partial or full length, on any drawing table. Nylon coated stranded steel cable secured by two cable locks insures parallel alignment of rule is adjustable.
Versatility, elegant appearance, ease of use and competitive pricing makes Spiroliner the first choice among discriminating architects, engineers, designers and graphic artists.


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