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12" Parallel Rule
No navigator should be without a good set of parallel rules as part of his navigation back up plan in the event of an electronic navigation failure.
This 12" parallel rule is accurate and durable.
Brushed aluminum arms
Polished aluminum handle
Milled with bevelled edges
Includes protractor scale
Dimensions: 1/4" (6 mm) thickness; 12" (305 mm) length
15" Parallel Rule
Of all our traditional parallel rulers, the 15" 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 bevelled edges
Includes protractor scale
Dimensions: 1/4" (6 mm) thickness; 15" (381 mm) length