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📐 Measure Twice, Impress Always – The Pro’s Angle Ruler
The Starrett Carpenter Square K53M-250-S combines a rustproof stainless steel blade with an ergonomic aluminium alloy handle, delivering precise 250mm dual-scale measurements. Engineered for professionals, it features laser-engraved metric and imperial markings, all-metal construction for zero play, and a safe, comfortable grip—making it the ultimate tool for accurate woodworking and carpentry.





| ASIN | B00RD59PJ2 |
| Best Sellers Rank | 35,694 in DIY & Tools ( See Top 100 in DIY & Tools ) 79 in Carpentry Squares |
| Brand | Starrett |
| Colour | argentée |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 6,761 Reviews |
| Global Trade Identification Number | 07891265209849 |
| Graduation Range | 250 Millimetres |
| Graduation range | 250 Millimetres |
| Included Components | 1x Carpenter Square |
| Item Dimensions L x W | 35L x 17.5W centimetres |
| Item Thickness | 1.2 Millimetres |
| Item Type Name | Try Square |
| Manufacturer | Starrett |
| Manufacturer Part Number | K53M-250-S |
| Material | Stainless Steel |
| Model Number | K53M-250-S |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product dimensions | 35L x 17.5W centimetres |
| Style | Woodworking |
| Style Name | Woodworking |
| Unit Count | 1.0 count |
D**E
Robust / trustworthy brand
The ruler is stainless steel, and the base is made of aluminium; as a skilled carpenter, this is my go-to tool. I've been purchasing their gadgets since slice bread. This instrument is extremely accurate, and the Starrett brand is well-known for its dependability. Brilliant value; a must-have in your tool collection. The measurement numbers are clearly visible in bold print and will not fade. Definitely recommend
M**S
Quality and large try square
I bought this as my old try square was not entirely square anymore. Firstly let me say that this is a big try square, for the price I was expecting something smaller but you certainly get your moneys worth. Secondly, yes the edges on the ruler can be sharp and pointy, but this isn't a toy it's a piece of equipment so as long as you treat it with due respect there shouldn't be an issue. If you don't like the edges then just file them down a bit. The structure seems to be fine and sturdy with no flex or movement between the two outside edges, it does 90 degree and 45 degree measurements easily.
T**S
Good value
Quite sharp edges. Sturdy and on the large side, good for larger format tiles and flooring. Haven’t checked it for square but Starrett are usually good.
P**C
Perfectly square out of the box and very sturdy
This square has to be the best value square on Amazon right now. I checked its square when it arrived and it is perfect. The rulers are properly calibrated off the respective inner and outer faces of the stock. The thin metal ruler arm of the square is straight not bent like many squares with long thin metal rulers. It feels very sturdy and I expect it to stay square for a long long time. It is made of good quality steel not aluminium so it will not get dented and bashed easily like the aluminium ones do. The length is very useful for general woodwork and also for checking/setting the squareness of flat pack furniture while assembling it. Highly recommended especially at this price!
N**S
Can't argue with it
Youngster with me when it arrived asked what it was. I told him it was a square. "That's not a square, it's L shaped!". Couldn't really argue with that observation. Go out and play buddy. Look, you can get worse quality for a good bit more than the few quid this cost. Yes, the edges are a little sharper than they need to be. So, a touch of minor sanding takes care of that. Without doing that, it doesn't inhibit the fucntion it was designed for. Still a bit of a bargin to me personally. If you need a straight edge, check. Very little flex, check. If you need imperial measurements or, half mill markings, look elsewhere. If none of that bothers you, and even if it does a tad, at this price I can still only say it is a no brainer, particularly if you are already a Prime member.
P**T
Yes it is square & decently made; dirt cheap too
Checked for square using a digital gauge... 90; or possibly 90.1..... close enough for my woodworking capability :) Seems very sturdy but edges and particularly corners of the handle do need softening off for comfort when using, as others have observed. I used a bit of emery paper to do that; - took all of 2 minutes. Very, very good value. I assume this is made in China. Much of the chinese stuff on Amazon is total rubbish but this square is solidly built and fit for purpose.
M**B
Does what it says
An ideal carpenters square for baking straight cuts in wood. I've already used this more than I thought I would and it's been spot on every time. For cutting short pieces of wood to marking out longer cuts it's been perfect. For short lengths of mood I can even use it to guide my jigsaw or circular saw. For the price you couldn't ask for better.
I**N
For the price for the size it's ok.
I bought the 350mm. Compared to a cheap framing square, the only other large square you'd get at this price it's adequate. Mine is out of square by around 0.25mm not terrible for woodworking and it was mainly bought for doing layout over multiple boards simultaneously when building doors and windows. And checking square during glue up. It's just about acceptable, ultimately my pencils going to introduce more error than this will. But it is already on the way to being replaced by a very large machinist square when money allows.
A**N
Excelente
Produto excelente, ótima qualidade de de construção.
P**O
Degelijke winkelhaak.
Stevige en degelijke winkelhaak.
H**D
qualidade
muita qualidade, robustez e bom acabamento
S**N
Good quality
It's a square and it is square - made by a reputable brand. Nothing more to say.
I**N
Perfecto
Muy buena y realmente está recta, muy útil, gracias
Trustpilot
1 month ago
3 weeks ago