School set square Grand GR-853 — plastic 60°/30° drafting triangle

Grand GR-853 is a transparent plastic 60°/30° drafting triangle designed for school and studio use. The set square provides two fixed angles—60° and 30°—and a straight edge for drawing precise lines, constructing geometric figures, and checking angles. Its clear plastic construction allows visibility of underlying work, making it suitable for classroom exercises, technical sketches, and craft projects.

Advantages

The set square offers stable, accurate angle references without the need for adjustment, enabling repeatable results when drawing or measuring. Its lightweight plastic body combines durability with portability, and the transparency improves alignment by letting you see the work beneath. The straight edges are suitable for use with pencils, pens, and fine markers, and the simple design requires no maintenance.

Suitable for

• School geometry lessons and classroom drawing exercises
• Technical sketching and basic drafting tasks
• Art and craft projects requiring accurate angles
• Student assignments and exam practice

Key specifications

• Material: transparent plastic
• Angles: fixed 60° and 30°
• Edge type: straight edges for drawing
• Weight: lightweight for easy handling
• Intended use: school, studio, craft

How to use

Place the set square on the work surface aligned with the reference line or point. Use the appropriate angled corner (60° or 30°) to draw or measure the desired angle, and run your pencil or pen along the straight edge to create a clean line. For parallel lines, mark reference points and move the set square while keeping alignment with a ruler or another edge. The transparent material helps you position the tool accurately over existing marks.

Usage recommendations

Store the triangle flat or in a protective sleeve to avoid warping or scratches. Clean with a soft cloth to remove pencil residue and avoid using abrasive cleaners. Use with standard pencils, technical pens, or fine markers for best results.