Weems & Plath 15″ Parallel Rulers with Protractor Scale


Of all our traditional parallel rulers, the 15 inch Brushed Aluminum Arm Parallel Ruler is the best seller. This sturdy acrylic parallel ruler is easy to use and is a necessary tool for every seagoing navigator.

  • Brushed aluminum arms
  • Polished aluminum handles
  • Milled with beveled edges
  • Includes protractor scale