Parallel Ruler with Brushed Aluminum Arm: 12" Length

Navigate with Confidence, Even When Technology Fails
In the unpredictable world of marine navigation, redundancy is your safety net. This 12" parallel ruler is more than just a plotting tool—it’s a precision-engineered solution designed to deliver flawless results when electronic systems let you down. Built for mariners who refuse to compromise on accuracy, it combines rugged durability with intuitive functionality, ensuring you can plot courses, measure bearings, and transfer lines with absolute confidence, no matter the conditions.

Unmatched Durability Meets Marine-Grade Construction
Crafted for the harsh realities of life at sea, this parallel ruler features brushed aluminum arms that resist corrosion, bending, and wear, even in saltwater environments. The polished aluminum handle provides a secure, ergonomic grip, while the fraser-cut acrylic rules with beveled edges offer unparalleled clarity and smooth movement across charts. Unlike flimsy alternatives, this ruler maintains its structural integrity, ensuring consistent performance trip after trip.

Precision Plotting Made Effortless
Gone are the days of cumbersome protractors and imprecise measurements. The integrated protractor scale allows you to directly transfer bearings from any meridian or compass rose, eliminating guesswork and reducing errors. The precision-linked arms glide seamlessly across charts, maintaining perfect parallel alignment for quick, repeatable results. Whether you're plotting a new course, adjusting for drift, or verifying waypoints, this ruler streamlines the process without sacrificing accuracy.

Designed for the Demands of Real-World Navigation
At just 154 g (0.34 lb) and with a slim 6 mm (1/4") profile, this ruler is lightweight enough for easy handling yet sturdy enough to withstand the rigors of onboard use. The included protective plastic case shields it from impacts, moisture, and UV damage, ensuring it remains in peak condition season after season. Backed by a limited lifetime warranty, it’s a tool you can rely on for years to come—because when you’re at sea, there’s no room for second best.

This 12" parallel ruler is engineered for precision and durability, featuring brushed aluminum arms and a polished aluminum handle for lightweight strength and corrosion resistance. The fraser-cut acrylic rules with beveled edges ensure smooth, accurate movement across nautical charts, while the integrated protractor scale allows for direct angle measurement from any meridian or compass rose. With a compact 6 mm (1/4") thickness and a weight of just 154 g (0.34 lb), it’s designed for easy handling without compromising stability. The ruler also includes a protective plastic case and is backed by a limited lifetime warranty for long-term reliability.

• Experience unmatched precision with a ruler built to withstand the toughest marine conditions.
• Brushed aluminum arms and polished handle resist corrosion and wear, ensuring long-lasting performance.
• Fraser-cut acrylic rules with beveled edges provide crystal-clear visibility and smooth gliding, reducing errors during plotting.
• Integrated protractor scale simplifies angle measurement, while precision-linked arms maintain consistent parallel alignment for effortless course transfers.
• Lightweight yet robust, this ruler is easy to handle and store, with a protective case included to shield it from damage.
• Backed by a limited lifetime warranty, it’s a tool you can trust for every voyage.