Professional Parallel Ruler Measuring Tool 17.72Inch Marine Navigation Ruler For Azimuth And Heading Measurement

Engineered for marine navigation, this 450mm parallel ruler combines high transparency acrylic and polished copper spacers, ensures accurately azimuth measurements and clearly scale visibility on navigation chart. Features copper acrylic construction with oxidation resistant polishing, the mutifunctional parallel ruler offer flexible operate and stable alignment for seamlessly chart plotting in demanding marine environment. Suitable for professional navigators, marine cartographers, and sailing enthusiasts requiring professional parallel drawing ruler measuring tool for complex course calculation during voyages or detailed charting task. Professional Parallel Ruler Measuring Tool 17.72Inch Marine Navigation Ruler For Azimuth And Heading Measurement Features: Engineered for marine navigation, this 450mm parallel ruler combines high transparency acrylic and polished copper spacers, ensures accurately azimuth measurements and clearly scale visibility on navigation chart. Features copper a

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