Helios Preisser Angle Square MKSC with Base 50 x 25 cm model 0372109

Helios Preisser Angle Square MKSC with Base 50 x 25 cm model 0372109 is a metal precision square designed for creating and checking exact 90° angles in woodworking, metalworking and construction tasks. The rigid L-shaped profile with an integrated base ensures stable contact with workpieces and edges, enabling accurate layout, marking and transfer of right angles over a long reach. The dimensions 50 x 25 cm provide a balance of reach and rigidity for bench and site use.

Advantages

The solid metal construction provides dimensional stability and resistance to bending during routine use. The integrated base (foot) offers secure seating on flat surfaces and edges, reducing play when scribing or measuring. Its clear, straight edges enable consistent alignment for marking and inspection, while the size gives sufficient span for larger boards and sheet materials without sacrificing control. The tool is light enough to handle easily yet robust for workshop and on-site conditions.

Suitable for

• Layout and marking of right angles on timber and sheet materials
• Checking squareness of assembled frames, cabinets and fixtures
• Transferring perpendicular lines from one surface to another
• Workshop and construction site measurement where a stable base is required

Key specifications

• Material: metal square profile for rigidity and wear resistance
• Overall dimensions: 50 cm x 25 cm usable edge lengths
• Integrated base/foot for stable positioning during marking and measuring
• Precision 90° angle suitable for layout and inspection tasks
• Finish: machined or formed edges to provide straight reference lines

How to use

Place the angle square with the integrated base seated firmly against the workpiece edge or surface so the two arms form a clean, tight right angle on the material. Hold the tool down to prevent movement, then scribe or mark along the outer edge with a pencil, knife or scriber for accurate transfer of the 90° line. For checking squareness of assemblies, align one arm with the reference edge and observe any gap or light between the opposite arm and the adjacent face to identify out-of-square conditions. Use the longer arm to span wider pieces and the shorter arm to maintain a firm seat against the edge.

Usage recommendations

Keep the reference edges clean and free of nicks; store the square on a flat surface or in a tool rack to maintain accuracy. Avoid using the square as a striking surface or prying tool. For best results when marking, use a sharp pencil or scribe and ensure consistent pressure to prevent movement during layout.