IMPA: 650811

Six-Folding Rule for Marine Surveying & Onboard Measurements

The Six-Folding Rule (IMPA 650811) is a precision measuring instrument designed for marine environments. Whether you're taking quick measurements on deck, in the engine room, or during ship repair, this folding rule delivers reliable readings every time. Its six hinged sections form a rigid straightedge when extended, yet fold neatly to a pocket-sized profile for easy storage.

Constructed from corrosion-resistant aluminum with a matte finish to reduce glare, this rule features easy-to-read graduation marks on both edges. The metric scale is printed in millimeters and centimeters, while the imperial scale shows inches in 1/16 increments. The folding joints are reinforced with brass pivots to maintain accurate alignment over years of strenuous use. Ideal for ship chandler supply, maintenance crews, and marine surveyors.

Key Features

Technical Specifications

SpecificationDetails
Overall Length (Extended)1000 mm (39.4 in)
Folded Length170 mm (6.7 in)
Number of Folding Sections6
Graduation (Metric)1 mm increments
Graduation (Imperial)1/16 in increments
MaterialAluminum body with brass pivots
Width16 mm
Thickness1.5 mm
Weight180 g (0.4 lb)
ColorSatin silver / clear anodized

Frequently Asked Questions

Is this folding rule resistant to saltwater corrosion?

Yes, the aluminum body is anodized for corrosion resistance, and the brass pivots withstand marine conditions. However, we recommend wiping it down after use in a saltwater environment to maintain optimal accuracy.

What is the total length when fully extended?

The rule extends to 1 meter (39.4 inches), making it suitable for most onboard measurement tasks.

Are both metric and inch scales available?

Yes, the rule features metric graduations in mm and cm on one edge, and inch graduations in 1/16-inch increments on the opposite edge.

How accurate is this folding rule?

The folding rule is manufactured to international standards with a tolerance of ±0.5 mm over the full length, ensuring reliable readings for marine engineering and ship repair applications.

Inquire About This Product

Contact us for pricing, availability, and bulk orders:

📧

📞 [Phone protected by JavaScript]

💬

💚 Add on WeChat

Open WeChat and add this ID:

Select Language