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The Mr. Pen Aluminum Triangular Engineer Scale Ruler is a 30cm metric scale designed for architects, engineers, and designers. Made from durable high-impact aluminum, it features laser-cut, fade-resistant markings across six scales (1:20 to 1:125) with a color-coded triangular design for quick, accurate measurements on architectural drawings and blueprints.





| ASIN | B07DNKNLSJ |
| Best Sellers Rank | #183,890 in Office Products ( See Top 100 in Office Products ) #30 in Triangular Scales |
| Brand | Mr. Pen |
| Brand Name | Mr. Pen |
| Color | White |
| Colour | White |
| Customer Reviews | 4.6 out of 5 stars 578 Reviews |
| Item Dimensions L x W | 8.6W centimeters |
| Manufacturer | Mr. Pen |
| Material | Aluminum |
| Material Type | Aluminum |
| Part Number | SE01 |
| Product dimensions | 8.6W centimeters |
| Style | Triangular |
| Style Name | Triangular |
| UPC | 853126008197 |
| Unit Count | 1 Count |
M**Z
Solid, accurate and easy to read scale
This is a decent, well made product. The markings (on my scale, at least) were clearly etched on - I can feel the slight indentation of the metal where the markings are placed. The markings are clear and crisp. The color coding on each side of the scale is a nice feature. I would suggest that the seller take another look at this page and fix some of the product photos and descriptive copy. It almost appears as if they just used the same page for both their metric and imperial scales. Some of the pictures show imperial scales, while this item is definitely METRIC scaled. I'm not complaining about the product I got - I ordered a metric scale, and that's what I got. But people might be mislead as to what they are getting - even the text has some ambiguities. I do agree with some of the other reviewers in noting that the ends of the ruler can be a bit sharp. A minute or so spent with some fine grit sandpaper will take care of this, but I think that this should be done at the manufacturing stage.
A**.
Well-made and does its job well!
Well-made. Smooth surfaces with accurate and easy to read scales.
D**C
Sleek scale ruler
This is by far my favorite scale ruler, much better than the plastic ones I have purchased in the past. 10/10 would buy again.
J**E
Great product! No issues at all.
This is a great metric ruler for the money! I did not have any damage issues other reviewers were talking about. I am not an architect or engineer but CAD and 3D print for scale model kits (mainly in 1/35, 1/16, and 1/48 scales). This ruler is sturdy and handy for my uses. Highly recommended!
M**N
Ideal for students
Perfect, exactly what my son needed
Trustpilot
2 weeks ago
5 days ago