Surface Square with Base Beta Tools 1670A-300 — 300 mm

Surface Square with Base Beta Tools 1670A-300 — 300 mm is a precision layout and alignment tool created for checking and marking right angles on flat surfaces. The 300 mm square has an integrated stable base that provides a consistent reference when placed against workpieces. Designed for professional and hobby tasks in metalworking, woodworking and assembly, the tool helps ensure accurate 90° measurement and repeatable layouts on benches, plates and components.

Advantages

The tool combines a rigid square head with a flat, stable base to minimise movement during measurement and marking. Its 300 mm length gives a balance between reach and control for medium-sized workpieces. The construction provides a reliable edge reference for scribing, inspection and setup tasks. The simple shape and weight distribution support easy placement and alignment on horizontal surfaces.

Suitable for

• Checking and marking 90° angles on metal plates and machined parts
• Layout and squaring of wooden panels and joinery
• Setup and inspection tasks on assembly benches and fixtures
• Use as an edge reference for scribing, drilling and milling operations

Key specifications

• Overall square length: 300 mm
• Integrated stable base for placement on flat surfaces
• Precision 90° angle for layout and inspection
• Suitable for metalworking, woodworking and general assembly use

How to use

Place the base of the surface square flat on the workpiece or bench so the square’s face contacts the edge or surface to be checked. Ensure the base sits stably and the square is fully seated before taking measurements or marking. For marking, hold the square firmly against the workpiece and scribe along the square’s edge to transfer the accurate 90° line. For inspection, visually and physically check contact along the square face to confirm perpendicularity; adjust the fixture or part as required.

Usage recommendations

Keep contact surfaces clean and free of chips, dust and oil to maintain measurement accuracy. Store the square in a dry place to prevent corrosion and handle with care to avoid dents or nicks on the reference edge. For demanding precision checks, use in combination with feeler gauges or a dial indicator to quantify deviation from 90°.