Weems & Plath Brushed Aluminium Parallel Ruler

This Parallel Ruler is a must-have navigation tool that you can use to easily plot direction on nautical charts. It comes with a tough, high quality design and is primarily used for commercial purposes due to its extra long 24 inch acrylic construction, rigid chrome arms and handles.

You can use this ruler to plot direction on nautical charts. Two straight edges are hinged so that they maintain the same angle. By alternating the moving edge, and securely holding down the non-moving edge, you can move the rulers about the chart while still maintaining the same angle.

• Milled acrylic with bevelled edges
• Includes protractor scale

12 Inch

• Weight: 0.34 lb. (154 g)
• Dimensions: 1/4" (6 mm) thickness; 12" (305 mm) length
• Model Number: 140

15 Inch

• Weight: 0.81 lb. (368 g)
• Dimensions: 1/4" (7 mm) thickness; 24" (610 mm) length
• Model Number: 141

18 Inch

• Weight: 0.69 lb. (313 g)
• Dimensions: 1/4" (5 mm) thickness; 18" (457 mm) length
• Model Number: 138