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The STANLEY 42-287 is a compact aluminum line level designed for quick, accurate horizontal reference checks on job sites. Measuring 3-3/32 inches in length and 0.8 inches in height, this lightweight tool clips onto a string or line to verify level across a span. It features a single vial for horizontal level indication and weighs just 0.2 pounds. The aluminum body keeps the tool durable and corrosion-resistant without adding bulk. It is commonly used by carpenters, masons, landscapers, and general contractors who need a fast, portable leveling solution during layout and construction tasks.
The STANLEY 42-287 suits residential and light commercial construction applications where a full spirit level is impractical. It is typically used when setting fence posts, laying block, establishing batter boards, or stringing foundation lines. The tool hangs from a taut line and allows a single tech or tradesperson to check level across long spans without a helper. Its small profile and aluminum construction make it easy to carry in a tool pouch.
Designed as a standard replacement or supplemental line level for general construction and masonry layout applications where a single-vial aluminum line level is required.
Hang the level from a taut string or mason line using the integrated hooks, ensuring the line is pulled firm to reduce sag-induced error. No tools are required for attachment. Keep the vial clean and free of debris to maintain accurate readings. This tool does not replace a full spirit level or laser level for precision finish work.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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