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D62-COCAI Complete Drawing Drafting Set with Case
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Get quoteThe 40cm Triangle Ruler Set Engineering from COCAI is one of the largest transparent triangle ruler sets in the COCAI product line. The 30° right-angle ruler extends to 37 cm × 21 cm, and the 45° isosceles ruler to 32 cm × 26 cm. These dimensions make the 40cm Triangle Ruler Set Engineering the preferred choice for engineers and architects working on full-size A0 drawings.
The 40cm Triangle Ruler Set Engineering features fine-increment scale markings on all edges, supporting precise line spacing and angle construction across very large drawing surfaces. The rigid acrylic construction prevents bowing under pressure from technical pens or pencils.
Civil engineering floor plans, electrical layout drawings, landscape architecture schematics, and oversized picture-frame mat layouts are common applications for the 40cm Triangle Ruler Set Engineering.
30° triangle: 37 cm × 21 cm. 45° triangle: 32 cm × 26 cm.
One step down: 35cm Triangle Ruler Set. Largest available: 45cm Triangle Ruler Set. Reference: ISO Technical Drawing Standards.
| SKU | D60 |
|---|---|
| Product Type | hardware |
| MOQ | 100 |
| Lead Time | 7-10days |
| Overview | <p>The COCAI 40cm Triangle Ruler Set Engineering provides two extra-large transparent acrylic rulers: a 30° triangle (37 cm × 21 cm) and a 45° triangle (32 cm × 26 cm). Designed for engineering and architectural boards up to A0 size.</p> |
| Highlights | 2-piece, 40cm XL set |
| Custom Packaging | Yes |
| Product Type | Triangle Ruler Set |
| Brand | COCAI |
| Set Size | 40 cm |
| Pieces in Set | 2 |
| 30° Ruler Dimensions | 37 cm (base) × 21 cm (height) |
| 45° Ruler Dimensions | 32 cm (hypotenuse) × 26 cm (height) |
| Material | Transparent acrylic |
| Angles Included | 30°, 45°, 60°, 90° |
| Suitable For | A0 drawing boards, engineering drafting |
| — | 8 |
|---|
What are the dimensions of the rulers in the 40cm Triangle Ruler Set Engineering?
The 30° ruler measures 37 cm × 21 cm; the 45° ruler measures 32 cm × 26 cm.
What drawing board size is ideal for the 40cm Triangle Ruler Set Engineering?
The 40cm set is best for A0 (841 × 1189 mm) and oversized engineering drawing boards.
Can the 40cm Triangle Ruler Set Engineering be used for picture framing mat design?
Yes, the extended rulers are useful for designing oversized picture-frame mats and large display layouts.

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Factory direct
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Factory direct
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Factory direct
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Available — request lead time
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