Aluminium Square Ruler MODECO MN-83-022 300 mm

MODECO MN-83-022 is a 300 mm aluminium square ruler designed to provide a reliable straight edge and precise 90° alignment for measuring and marking tasks. Constructed from lightweight, corrosion-resistant aluminium, the square offers a stable profile for checking right angles and transferring lines on wood, metal and other common workshop materials. The compact 300 mm length makes it suitable for bench work as well as on-site adjustments where a durable, portable tool is required.

Advantages

The aluminium construction combines low weight with good dimensional stability and resistance to rust, ensuring consistent performance in varied workshop conditions. Its machined edges provide a true reference line for measuring and marking, while the compact size supports easy handling and storage. The tool’s simple, rigid form minimizes flex during use, improving accuracy when checking corners, squaring workpieces or guiding marking lines.

Suitable for

• Checking and marking 90° angles in carpentry and joinery
• Layout and marking tasks in metalworking and fabrication
• DIY projects requiring accurate edge lines and squaring
• Fixture and assembly alignment in small workshops

Key specifications

• Length: 300 mm
• Material: aluminium (corrosion-resistant)
• Shape: square ruler with straight, machined edges
• Weight: lightweight, suitable for handheld use
• Accuracy: designed for reliable 90° checks and layout work

How to use

Place the inside or outside face of the aluminium square against the edge or corner of the workpiece to verify or transfer a right angle. Use the machined edge as a guide for marking with a pencil, scribe or knife. For checking squareness, align one leg of the square with a reference edge and inspect the contact along the opposite leg; any gap indicates deviation from 90°. When marking, hold the square firmly to prevent movement and run the marking tool along the edge in a steady motion.

Usage recommendations

Store the square in a dry place to avoid buildup of contaminants and wipe clean after contact with adhesives or cutting fluids. For best results when measuring or marking on rough surfaces, ensure the contact edges are free of burrs or debris. Do not use the aluminium square as a striking surface or pry bar to prevent deformation; periodic visual checks of the edges will help maintain accuracy.