ChainYao 30cm Triangular Scale Ruler, Precision Metric Aluminium Architect Ruler, Laser Etched 6 Scales 1:20 1:25 1:50 1:75 1:100 1:125 for Engineering Drafting Technical Drawing

• High-Precision Laser Etched Scales Professional grade metric triangular ruler with ultra-clear laser etched markings, bold and legible, never fade or wear off even with long-term frequent use. Ensures supreme accuracy for all your drafting and measurement work, eliminates reading errors and improves work efficiency.
• 6 Commonly Used Metric Scales This 3-sided architect scale ruler features 6 most widely used metric scales: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125. Clear scale division on each side for quick and easy reading, no manual calculation required, meets all your daily drafting and measurement needs.
• Premium Anodized Aluminium Material Made of high-quality anodized aluminum alloy, this triangular scale ruler is solid, sturdy, rust-proof and anti-deformation. The smooth matte finish provides a comfortable non-slip grip, lightweight and portable for on-site measurement and office use.
• Professional Multi-Scene Application Standard 30cm effective length, this precision scale ruler is an essential tool for architects, engineers, draftsmen, surveyors, interior designers, teachers and students. Perfect for architectural drawing, engineering design, technical drafting, blueprint reading, classroom study and more.
• 24 Month UK Warranty & Reliable Service We provide a 24-month manufacturer warranty for this triangular scale ruler, free replacement or full refund for any quality issues. Our 24/7 professional customer service team will solve all your problems promptly, ensuring a worry-free purchase.

**Product Description** Achieve precise and efficient drafting work with ChainYao professional 30cm triangular metric scale ruler, the essential measuring tool for architects, engineers, designers and students. Combining high-precision laser etched scales, durable anodized aluminium construction and ergonomic triangular design, it delivers stable and accurate performance for all your technical drawing and measurement needs. **Product Specifications** - Brand: ChainYao - Model: CY156 - Overall Length: 32cm - Effective Measuring Length: 30cm - Material: Anodized Aluminum Alloy - Color: Black - Scale Type: Metric - Included Scales: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125 - Marking Process: High-Precision Laser Etching **Core Advantages** ✅ Laser etched markings, high precision, never fade or wear off ✅ 6 commonly used metric scales, meets all professional drafting needs ✅ Anodized aluminum alloy, sturdy, rust-proof and anti-deformation ✅ Triangular ergonomic design, comfortable non-slip grip ✅ Standard 30cm length, perfect for office, on-site and classroom use ✅ Lightweight and portable, easy to carry in pencil case and tool bag ✅ 24-month UK warranty, reliable after-sales support **Ideal For** *Professional Use*: Architects, civil engineers, draftsmen, interior designers, surveyors, technical illustrators *Learning Use*: Architecture students, engineering students, design students, art students, school teachers, classroom teaching *Application Scenarios*: Architectural drawing, engineering design, blueprint reading, technical drafting, on-site measurement, model making, classroom study, graphic design **Package Contents** 1 x 30cm Triangular Metric Scale Ruler **Warm Tips** Please keep the ruler away from sharp objects and corrosive liquids to avoid damaging the scale markings. This is a metric scale ruler, please confirm the scale type you need before purchase.