KOH-I-NOOR triangular ruler 45/177 16cm

KOH-I-NOOR 45/177 Triangle – Precision in Every Drawing

Product: Triangle Ruler (16 cm), 45/177
Material: Transparent plastic

Geometry lessons, technical drawing, or simple sketching are unthinkable without a reliable measuring tool. The KOH-I-NOOR 45/177 triangle is a classic stationery item designed for those who need precision and durability in one body.

Technical Summary (Specifications)

• Type: Technical drawing triangle (45/177).
• Length: 16 cm main scale.
• Angles: 90° and 45°.
• Material: Transparent polystyrene.
• Packaging: Bulk pack of 50 units (item sold per unit).

1. Construction and Visibility

One of the biggest advantages of this ruler is the complete transparency of the plastic. This is critical when performing complex drawings:

• Maximum Visibility: While working, you can clearly see the lines underneath, helping to avoid errors when connecting points.
• Quality Printing: The scale markings are clear and contrasting, ensuring that eyes do not get tired even when working in lower light conditions.

2. Geometric Versatility

This triangle combines two main functions in one tool. It is not just a 16 cm ruler, but also a precise gauge:

• Angle Measurement: Integrated 90 and 45-degree angles allow you to quickly draw perpendiculars or diagonals without an additional protractor.
• Optimal Size: The 16 cm edge is long enough for most school tasks while still fitting perfectly into a standard pencil case or folder.

3. KOH-I-NOOR Reliability

The KOH-I-NOOR brand is synonymous with quality. Unlike cheap analogues, this technical drawing triangle is made of sturdy plastic that is more resistant to breaks and scratches. This means the corners will stay sharp and the edges smooth even after long-term use.

Verdict

The KOH-I-NOOR 45/177 triangle is a basic yet indispensable tool for pupils, students, and office workers. It ensures smooth work during math, geometry, or design classes. It is an affordable yet high-quality investment for neat and accurate drawings.

Frequently Asked Questions (FAQ)

Does this triangle have a protractor in the middle?

This specific 45/177 model focuses on 90/45 degree angles and linear measuring scales; it does not have an additional semi-circular protractor cutout in the center.

Does the plastic yellow over time?

When used under standard conditions and protected from direct sunlight, the high-quality plastic used by KOH-I-NOOR remains transparent for a long time.