This multi-purpose professional rolling ruler by Pacific Arc is an easy-to-use drawing tool that combines the functions of a parallel straightedge, protractor, T-square, and compass. Made with an aluminum roller bar for smooth-gliding action, non-skid rubber rings for a firm grip on any surface, and durable acrylic with printed graduations.
This tool can be used to:
- Draw parallel lines with ease and accuracy
- Draw circles up to 16 inches in diameter using through-holes at 0.5 inch intervals
