Ruling Pen 3.5mm Diameter

Pacific Arc Ruling Pen — 3.5mm

A precision drawing tool built for clean, consistent lines. This traditional ruling pen features two adjustable metal jaws that hold ink, gouache, watercolor, masking fluid, or other fluid media between them — turn the knob to widen or narrow your line, dip the nib, and go. The hardened, nickel-plated steel nib is removable and fits into any break-leg compass, so the same tool that draws a crisp straight line can also strike a perfect arc or circle.

A go-to for technical drawing, drafting, cartography, picture framing, and calligraphy — a favorite among letterers looking for a fine-point alternative to a fountain pen. Comes with a durable plastic handle for comfortable control.

Details:

• Diameter: 3.5mm
• Removable, hardened nickel-plated steel nib
• Compatible with break-leg compasses for arcs and circles
• Adjustable jaws for variable line width
• Works with ink, gouache, watercolor, and other fluid media