STAEDTLER 551 01 precision car compass with telescopic rod for technical drawing, professional German-made steel compass creating circles up to 265mm diameter in compact 180x77mm packaging.
STAEDTLER 551 01 Professional Car Compass for Technical Drawing Circles up to 265mm

The STAEDTLER 551 01 precision car compass is a specialised drawing instrument designed for creating accurate circles and arcs. Made in Germany from steel, this compass employs a telescopic rod mechanism, allowing users to set a consistent radius for repeated drafting tasks. It is engineered for technical applications where precision is required, such as in technical drawing, architectural plans, or engineering designs. The tool arrives in a compact package, making it easy to store and transport alongside other drawing equipment.
Features and Construction

The compass is built around core features that support its function as a precision drawing tool.
Material and Build
Constructed from steel, the STAEDTLER 551 01 car compass offers a solid and durable feel. The steel components contribute to the tool's stability during use, minimising unwanted movement and helping to maintain line consistency. This material choice is typical for professional-grade drafting instruments where rigidity is important for accuracy.
Size and Practical Fit
This compass can create circles with a maximum diameter of approximately 265mm, covering a useful range for many technical drawings. The product itself is supplied in packaging measuring 180mm by 77mm, indicating its compact form for storage. The telescopic rod design allows the working radius to be adjusted and locked into position, providing control over the circle size.
Uses and Placement

This instrument is designed for specific applications where traditional compasses are used.
Event or Professional Use
In professional environments, the STAEDTLER 551 01 compass is suited for drafting tables, technical design studios, and engineering offices. Its ability to draw consistent circles up to 265mm makes it applicable for creating schematics, diagrams, and precise geometric shapes as part of larger plans or standalone drawings.
Everyday Home Use
For home use, this compass can be employed by students studying technical subjects, hobbyists engaged in model-making, or anyone requiring accurate circles for personal projects. The steel build and German engineering make it a reliable step up from basic school compasses for more demanding tasks.
Benefits and Buying Value

The value of this product lies in its specific design and construction.
Reuse and Low Maintenance
As a steel instrument with moving parts designed for adjustment, the compass is built for repeated use. Keeping the telescopic rod mechanism clean and storing the tool in its provided packaging can help maintain its precision over time. No specialist maintenance beyond basic care is indicated by the source material.
Why Choose This Product
The STAEDTLER 551 01 car compass offers a clearly defined specification: German-made steel construction, a telescopic rod mechanism, and a maximum circle diameter of 265mm. For users who need a reliable, brand-name tool for technical drawing within this size range, it provides a focused solution without unnecessary complexity.
