Spirit level STANLEY STHT1-43110, 0.4 m aluminium, ±0.5 mm/m accuracy

STANLEY STHT1-43110 is a 0.4 m aluminium spirit level intended for accurate measurement of horizontal and vertical alignment. The compact aluminium profile combines light weight with durability for repeated use on jobsites, in workshops or during DIY tasks. With levelling accuracy of ±0.5 mm/m, this spirit level is suitable for layout, carpentry, installation and other situations where a portable, reliable reference for straightness and plumb is required.

Advantages

The aluminium construction offers a balance of strength and lightness, reducing user fatigue during extended use while resisting deformation. A clear vial design supports quick reading of bubbles for both horizontal and vertical measurements. The 0.4 m length makes the tool easy to carry and manoeuvre in confined spaces without sacrificing sufficient span for typical alignment jobs. The specified accuracy of ±0.5 mm/m provides a measurable standard for tasks that require moderate precision.

Suitable for

• Carpentry and joinery alignment
• Installing shelves, cabinets and fittings
• DIY home maintenance and repairs
• Light construction and renovation work
• Checking plumb and level on doors and frames

Key specifications

• Overall length: 0.4 m
• Material: aluminium profile
• Levelling accuracy: ±0.5 mm per metre
• Measurement axes: horizontal and vertical vials
• Design: compact and portable

How to use

Place the spirit level on the surface to be checked, ensuring full contact along the reference edge. For horizontal checks, set the level on the surface and observe the bubble position in the horizontal vial; adjust the surface until the bubble centres. For vertical checks, align the vial against the vertical plane and make adjustments until the bubble is centred. Use the level across the span required for the task, and re-check after fastening or adjusting fixtures to confirm alignment.

Usage recommendations

Store the spirit level in a dry place and avoid impacts that could affect vial accuracy. Periodically verify accuracy on a known flat reference by placing the level, noting the bubble position, rotating the level 180° and comparing results; significant deviation may indicate damage or the need for replacement. Clean the contact edges before precision checks to remove debris that could affect readings.