Corner Square Helios Preisser 25 x 16 cm model 0375412 — metal layout and marking tool

The Helios Preisser corner square model 0375412 is a metal layout and marking tool sized 25 x 16 cm designed to provide a rigid, accurate reference for right-angle checking, marking and transfer operations. Manufactured for use in metalworking and carpentry, this corner square offers a stable straight edge and a defined 90° corner that helps ensure repeatable alignment when measuring, scribing or assembling components. Its compact footprint makes it suitable for bench work and fitting tasks where space is limited.

Advantages

The corner square is made of durable metal to resist bending and wear during regular workshop use, maintaining dimensional stability for precise layout work. Its flat reference faces allow secure placement against workpieces for reliable marking and transfer, and the size balances reach and control for both small and medium tasks. The simple, solid construction requires no calibration and supports fast, consistent checking of right angles and edges.

Suitable for

• Checking and marking 90° angles in metalworking
• Layout and scribing tasks in carpentry and joinery
• Quality control checks and repeatable assembly alignment
• Bench fitting and component transfer work

Key specifications

• Material: metal construction for dimensional stability and wear resistance
• Overall footprint: 25 x 16 cm, suitable for small to medium workpieces
• Right-angle accuracy: fixed 90° corner for layout and checking
• Flat reference faces for scribing and edge alignment
• Compact, rigid design for bench and workshop use

How to use

Place the corner square with its inner or outer faces against the edges of the workpiece so the 90° corner sits firmly on the intersection to be checked or marked. Use a scribing tool, pencil or marking knife along the straight edge to transfer layout lines. For angle checking, press the square into the corner and inspect for gaps or light passage to detect misalignment. When measuring or transferring, keep the square flat and, if necessary, clamp it in place to avoid movement while marking.

Usage recommendations

Store the tool on a flat surface or hang it to avoid warping. Clean reference faces after use to remove debris and swarf that could affect accuracy. For critical measurements, verify the square against a calibrated reference before use and avoid exposing it to excessive bending forces.