Westcott ROL-12 12-Inch Rolling Ruler

The Westcott ROL-12 12-Inch Rolling Ruler is a drafting and drawing tool that combines straightedge precision with a built-in rolling mechanism for efficient line work. Unlike conventional rulers that require manual repositioning for each parallel line, the ROL-12 rolls smoothly across the drawing surface, maintaining consistent spacing and alignment. This makes it especially useful for tasks like cross-hatching, technical drawing, and layout work where numerous evenly spaced parallel lines are needed.

Made from clear material, the ruler lets you see your work underneath for accurate placement and alignment. Beyond straight lines, the ROL-12 can roll in an arc to draw circles up to 24 inches in diameter — a useful feature that reduces the need for a separate compass when working at larger scales. At 12 inches long, it handles most standard drawing and measuring tasks comfortably. Whether you are a student, artist, architect, or hobbyist, the rolling ruler simplifies repetitive line work and speeds up the drafting process.