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The APEX W393 is a compact architect's pocket scale designed for drafting, blueprint reading, and site measurement tasks. The triangular body houses six scaled edges in the A18 blade style, allowing quick switching between common architectural ratios without swapping tools. The clearcoat blade finish protects printed graduations from wear and abrasion during regular field or office use. The scale measures 2 inches in overall length and 0.75 inches in overall height, with an overall width of 1.9 inches, making it easy to carry in a shirt pocket or tool pouch. The 5-foot blade length delivers a usable measurement range suited to architectural and construction drawing work. Graduated in SAE units. Licensed architects, drafters, estimators, and construction professionals use this tool daily.
The W393 is suited for residential and commercial construction drawing review, plan checking, and field layout reference. Its compact footprint makes it practical for job-site use where a full-size scale rule would be cumbersome. The A18 blade style covers the standard set of architectural scale ratios used in U.S. construction documentation, making it compatible with the scale conventions on most architectural drawing sets produced under SAE standards.
Designed for use with SAE-unit architectural drawing sets using A18-style scale conventions. Suitable for standard U.S. architectural and construction documentation review.
No installation required. This is a hand measurement tool. Store away from direct heat sources that could warp the blade body. Keep blade surfaces clean and dry to preserve graduation legibility over time.
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