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📐 Elevate your precision game with Mr. Pen’s ultimate T Square ruler!
The Mr. Pen 45 cm T Square is a premium drafting tool made from durable carbon steel, featuring dual-sided laser-etched inch and centimeter scales. Designed for architects, engineers, and artists, it offers versatile use as a T square, L square, or L ruler, delivering precise measurements and long-lasting performance trusted by thousands of professionals.




| ASIN | B07F1XKFZX |
| Best Sellers Rank | #30,226 in Office Products ( See Top 100 in Office Products ) #157 in Drafting Tools & Drafting Kits |
| Brand | Mr. Pen |
| Brand Name | Mr. Pen |
| Color | black, white |
| Customer Reviews | 4.6 out of 5 stars 3,604 Reviews |
| Graduation Range | 1/16 inches |
| Manufacturer | Mr. Pen |
| Material | Carbon Steel |
| Material Type | Carbon Steel |
| Model | TS18 |
| Number of Items | 1 |
| Part Number | TS18 |
| Style | T,L Square,Square,T Square |
| Style Name | T,L Square,Square,T Square |
| UPC | 853126008272 |
G**L
Nice and sturdy
I'm very pleased with the quality of this T square. Very sturdy
L**A
It has measurements on both sides. Onecentimeters and inches, and the other side shows.
Excellent product, even better than I expected. The quality is indescribable. Measures on both sides. Ideal for precision in crafts and other projects. 100% recommend. Received on time.
J**E
Great for the Price
Getting this T-Square is a solid deal for a cheap price. It does what it's supposed to do by providing 90 angle edges for drawing my architecture plans, sections, and elevations. I normally use a bigger, more expensive, T-Square; I got this T-Square because of it's smaller size that allows me to carry around when I am traveling and unable to go to the studio to work. This T-Square is made out of strong metal, which makes it quite durable, thus allowing it to sustain for a long time. Furthermore, it provides both inch and millimeter measurements, which I found convenient for my drawings. The only minor issue I have with this T-Square is it's thickness, as a thinner edge will make drawing square edges more efficient with better visibility for sophisticated linework. However, the thickness of the T-Square is understandable, as it is made out of sturdy steel, and the thickness doesn't undermine its function. If you are looking for a cheap, small, travel-friendly T-Square, this T-Square is a decent choice.
T**Y
Read specs, otherwise its great
This is a very sturdy metal T Ruler and the measurements are extremely easy to read... black on white. I guess I should have read a bit as I assumed it was a 24" that would run the depth of my art table but that was my error. The one thing I assumed it had, since it has been on all T rulers I have ever used, is a slight lip on the T top cross section allowing you to let it catch on your work station to ensure that your line is perpendicular. Instead it is all one piece of metal. If that is your preference, its a 5 star. I may find that I prefer carefully lining it up with the paper or canvas's edge instead of letting my table's base lip line up my paper/canvase. It does have inches on one side, marked on all edges, and them MM on the other side marked on all edges. It is a fine T Ruler. I hope this helps.
A**R
Well made and useful
Love the T Square. It is very useful for lining up my leather and getting the cut where I want it. Also, seems very well built. I will buy again from Mr. Pen.
M**N
Mr. T ruler
As a beginner this tool was helpful to do my shirts. The size was perfect. I would recommend it.
A**D
This is the T-square you need for drawing
This exceeded my expectations and is just perfect. Many t-squares cannot lie flat on paper because they're made for matting/framing or other purposes. I had to look a long time to find one with the t-bar flush to the body. If you need a t-square for drawing, this is your guy. The numbers are large and very readable. Solid metal, heavier than expected, and simply excellent quality. I could not be happier with this item. Highly recommended.
S**S
Not a straight edge
This doesn’t have a ridge on it to slide up and down for a straight edge. Unfortunately, my window of return closed. It’s nice and solid. Just not what I’d use it for.
R**B
Perfect for layout of door jambs or window jambs
I love this square because it’s small enough to fit on my pouch hook and it’s great for tight layout of door jambs and window jambs. Recommend for all trades men doing floor layouts.
S**3
Description is WRONG
Description says 1mm increments. It's 2mm increments which is unusual & hard to adjust to when trying to work fast. If you want advice on making a better ruler do this => Count in Centimeters W/1millimeter increments for the etchings.
F**T
Perfect of cards
I purchased this T square to help my make my greetings cards as the one I had broke. Fast delivery and good quality. I would purchase this again if needed. Thank
C**N
Muy buena regla T
Es un regla que superó la calidad que esperaba, es metálica y de una sola pieza por lo qur supongo que será extremadamente durable, incluso es pesada y tiene la medición en centímetros y en pulgadas. Definitivamente es un producto que si recomendaria para un adulto pues incluso es tan fuerte que puede resultar pesada para un niño.
K**P
Great for fab work
Bought this product because I seen another coworker with something very similar. That was just a little bit bigger than this one but overall I’m extremely happy it fits in my toolbox great and it’s great for metal fab layout.
Trustpilot
1 day ago
2 weeks ago