School compass Penmate PC-101, green

Penmate PC-101 is a school compass in green designed for drawing circles and arcs for geometry and basic technical drawing. The compact, lightweight design and an adjustable hinge allow students to set and retain a chosen radius while the standard pencil holder accepts a regular graphite pencil for routine classroom use. The compass provides a straightforward tool for producing clear circular outlines and measurements during lessons and simple drafting tasks.

Advantages

The compass features a stable hinge mechanism for incremental radius adjustment and a firm grip on a standard pencil, ensuring consistent line quality. Its compact profile and low weight make it easy to carry in a pencil case and handle for extended classroom sessions. The green finish offers clear visual identification among other stationery items and is compatible with common pencils used by students.

Suitable for

• Drawing circles and arcs in school geometry lessons
• Basic technical sketches and simple drafting
• Measuring and transferring radii for class assignments
• Use by primary and secondary school students

Key specifications

• Colour: green
• Construction: two-leg compass with adjustable hinge
• Pencil holder: standard clamp for regular graphite pencil
• Portability: compact and lightweight design
• Intended use: school and basic drafting tasks

How to use

Place a regular pencil into the clamp and tighten to secure the lead. Set the compass legs to the desired radius using the adjustable hinge, then position the pointed leg at the centre point and rotate the pencil leg smoothly to draw a circle or arc. For repeated measurements, maintain the hinge setting and check pencil alignment periodically to ensure consistent line thickness. Store the compass in a pencil case or protective sleeve when not in use to avoid damage to the point and pencil.

Usage recommendations

Use a sharpened graphite pencil of appropriate hardness to achieve clear lines; avoid excessive pressure that could bend the legs or shift the hinge. Regularly check and gently tighten the pencil clamp and hinge to maintain accuracy. For precise technical work, pair the compass with a ruler or protractor to verify centres and angles.