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Westcott M-109 Metric/Inch Ruler 30cm Opaque — main product image
Westcott M-109 Metric/Inch Ruler 30cm Opaque
Westcott M-109 Metric/Inch Ruler 30cm Opaque
Westcott M-109 Metric/Inch Ruler 30cm Opaque
Westcott M-109 Metric/Inch Ruler 30cm Opaque
Westcott M-109 Metric/Inch Ruler 30cm Opaque
Westcott M-109 Metric/Inch Ruler 30cm Opaque
Westcott

Westcott M-109 Metric/Inch Ruler 30cm Opaque

12 Inch

Measure in both metric and imperial with this durable 30cm plastic ruler featuring clear graduations and a handy conversion table.

$9.99*
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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.

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Overview

The Westcott M-109 Metric/Inch Ruler is a practical measuring tool that combines metric and imperial scales in a single 30cm (12-inch) instrument. One edge is marked in millimeters while the opposite edge is divided into sixteenths of an inch, with the two scales meeting at the center of the ruler for direct comparison. This layout is useful for anyone who regularly works with both measurement systems — whether converting between dimensions on imported drawings, checking specifications listed in different units, or simply needing a versatile general-purpose ruler.

Made from lightweight laminated plastic, the M-109 is built to handle daily use in classrooms, studios, and offices without adding weight to a pencil case or tool kit. Its transparent finish lets you see through to the page beneath, which aids in aligning the ruler precisely over existing lines and marks. On the reverse side, eight printed unit conversions serve as a handy reference, reducing the need to look up common conversion factors. Whether used for drafting, layout work, or everyday measuring tasks, the M-109 covers the basics reliably and affordably.

Key Features

METRIC RULER: A 12 Inch precision ruler with one edge in millimeters and the opposite edge in 16ths to the inch; Perfect for your drafting and drawing needs

ACCURATE MEASUREMENT: Measuring ruler featuring precise graduations and calibrations meet in center offering a comparison between the metric and english scales

EASY TO READ: Scale ruler with a transparent finish allows viewing through to the page while you work with a series of 8 useful conversions listed at the back side

DURABLE MATERIAL: Plastic scale ruler is strong, reliable and made with lightweight material which is laminated for durability

MULTI PURPOSE: This measuring tool is ideal for artists, designers, architects, engineers, and students

Specifications

Brand
Westcott
Model
M-109
Length
30cm / 12 inches
Material
Laminated plastic
Scales
Millimeters and 1/16 inch
Finish
Transparent
Additional Features
8 unit conversions on reverse side

Frequently Asked Questions

One edge is graduated in millimeters and the opposite edge in sixteenths of an inch, allowing you to measure in both metric and imperial units with a single tool.
The reverse side lists eight common unit conversions, providing a quick reference without needing to look up conversion factors separately.
The Westcott M-109 has a transparent finish that allows you to see the page or drawing beneath it while you work, making it easier to align measurements with existing marks or lines.
It is made from lightweight plastic that is laminated for added durability, making it resistant to everyday wear while remaining easy to carry.
Yes, its precise millimeter and 1/16-inch graduations that meet in the center make it well suited for drafting, drawing, and other tasks requiring accurate measurement.

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