The Rhino Engineer's folding ruler has a 1/2" x 6' Engineer's Scale and is available in English and Metric measurements.
Lufkin Red End® Folding Engineer's Scale Wood Rule, 6-feet
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US Tape 55125 Rhino Fiberglass Folding Ruler 5/8 x 6' Engineer's: 10t —
Rhino Rulers have an easy-to-close folding joint design to help you get accurate measurements when laying brick, block, or stone. This measuring tool
MARSHALLTOWN Rhino Rulers, Oversized Brick Spacing, Accurate Measurements, Easy-to-Close Folding Joint Design, Masonry Ruler, Weather Resistant, 6647
Rhino Rulers Folding Engineer's Ruler 6' Length (10ths and Inches) - 55125 - Construction Rulers
Rhino Engineer's Folding Ruler - US Tape
Top Engineering Rulers Engineer Supply - EngineerSupply
Rhino Ruler, 6 foot Fiberglass Folding Rule
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Rhino Rulers Folding Engineer's Ruler 6' Length (10ths and Inches) - 55125 - Construction Rulers
Rhino Carpenter's Folding Ruler - US Tape
Rhino Rulers Folding Engineer's Ruler 6' Length (10ths and Inches) - 55125 - Construction Rulers
Rhino Carpenter's Folding Ruler - US Tape