Drawing compass Strigo automatic with pencil holder, black

The Strigo automatic drawing compass in black is a compact instrument designed for precise circle drawing in technical drawing, drafting and school geometry. It features a pencil holder for standard pencils and an automatic adjustment mechanism that allows quick changes of radius. The compass is lightweight and intended for everyday use by students, designers and engineers who need reliable, repeatable circles and arcs.

Advantages

The compass offers steady leg fixation to maintain set radii during use and minimize drift. Its pencil holder secures a standard pencil point to produce consistent line width without requiring a separate lead or refill. The automatic adjustment mechanism simplifies setting the radius, saving time when switching between sizes. The compact form factor makes the tool easy to carry in a pencil case or toolbox.

Suitable for

• School geometry and classroom exercises
• Technical drawing and drafting tasks
• Architectural layouts and simple engineering sketches
• Hobby and craft projects requiring accurate circles and arcs

Key specifications

• Color: black
• Pencil holder compatible with standard wooden or mechanical pencil diameter
• Automatic radius adjustment mechanism for quick setting changes
• Steady leg fixation for stable measurements
• Compact and lightweight construction for portability

How to use

Insert a standard pencil into the pencil holder and secure it so the tip aligns with the compass point. Place the pointed leg at the intended centre of the circle and rotate the pencil-bearing leg smoothly to draw the circle. Use the automatic adjustment mechanism to set the radius: unlock if necessary, move to the required distance, then engage the fixation to hold the legs in place. For smaller radii, keep movements steady and for larger radii ensure the pencil is tightly fixed to avoid slippage. After use, loosen the pencil holder to remove or replace the pencil.

Usage recommendations

For best results, use a sharpened pencil and check fixation before drawing. When working on detailed technical drawings, verify measurements with a ruler or caliper and store the compass in a protective case to preserve alignment and prevent damage.