Westcott

Westcott B-70 12-inch 8ths Graph Beveled Ruler

4.6 (3696 reviews)
12 inch

A transparent 12-inch beveled ruler with 8ths graph markings and zero centering scale for precise drafting work.

$5.90*$6.01Save 1%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Westcott B-70 is a 12-inch transparent plastic ruler built for drafting, design layout, and general measurement tasks where visibility and precision matter. Its clear body allows you to see the page beneath the ruler at all times, making it simple to align edges, position guidelines, and verify measurements against existing work. The 1/8-inch graph-style graduations are printed in a crisp, easy-to-read format, and the zero centering scale — which places the zero mark at the ruler's midpoint — is a practical feature for anyone who frequently needs to center elements or measure symmetrically from a reference line.

The beveled edge is a detail that drafters and illustrators will appreciate: by lifting the ruler's marking edge slightly above the paper surface, it helps prevent ink from wicking underneath and smearing your work. The durable laminated finish protects the printed graduations from wearing off with regular use, an important consideration for a tool that sees daily handling in classrooms and studios. At just over 12.9 inches in total length and under a tenth of an inch thick, the B-70 stores easily in pencil cases, toolboxes, or desk drawers without adding bulk.

Key Features

Elevate Your Drafting Experience - Our Westcott ruler is the perfect addition to your school supplies. The 12 inch ruler is calibrated in 16ths to the inch and features a durable laminated finish ideal for geometry and art supplies

Precision Measuring Made Easy - The zero centering scale on our transparent ruler allows for accurate measurements, making it an essential tool for math and geometry tasks. This clear grid ruler enhances visibility for neat and professional work

Built to Last - This beveled edge ruler is made with a durable finish designed to withstand extensive use in classrooms. A student and teacher essential, it's a must-have addition to drawing supplies

Versatile and User-Friendly - Our clear ruler features a transparent design for easy viewing of pages beneath, perfect for drafting and design. Outfit your arsenal of study supplies with Westcott's reliable tools

Ideal for Every Creative Pursuit - Whether you're an artist student or architect our center ruler empowers you to explore countless possibilities in your work. Experience top-tier performance from Westcott, dedicated to providing the best drawing solutions

Specifications

Brand
Westcott
Model
B-70
Type
Beveled Ruler
Length
12 inches
Material
Plastic
Color
Clear
Graduation
1/8 Inches
Features
Zero Centering Scale
Dimensions
12.91 x 1.97 x 0.1 inches

Pros & Cons

👍 Pros

  • Zero centering scale simplifies centering tasks without requiring mental math
  • Clear transparent body lets you see your work underneath for accurate placement
  • Beveled edge helps prevent ink smearing when drawing lines
  • Durable laminated finish keeps markings readable through extended classroom or studio use

👎 Cons

  • Plastic construction is less rigid than metal or aluminum rulers and can flex under pressure
  • At 12 inches, it may be too short for larger format drafting or architectural work
  • 1/8-inch graduation may not be fine enough for tasks requiring 1/16-inch or 1/32-inch precision
  • Lightweight plastic can slide on smooth surfaces if not held firmly

Frequently Asked Questions

The ruler is graduated in 1/8-inch increments, with a zero centering scale that allows you to measure outward in both directions from a center point.
The beveled edge is a raised, angled edge that lifts the markings slightly off the paper surface, reducing ink smearing when used for drafting or inking lines.
Yes, the clear plastic construction allows full visibility of the work underneath, making it easy to align the ruler precisely over existing lines or reference points.
The ruler features a durable laminated finish designed to resist wear from repeated use in classroom and studio settings, keeping the printed markings legible over time.
The zero centering scale places zero at the midpoint of the ruler, allowing you to measure equal distances in both directions from center — useful for centering elements in design and layout work.