IRWIN Combination Square, 12”, 45-90 Degree Marking, Stainless Steel (1794469)

4.7 4.7 out of 5 stars | 12,598 ratings

Price: 12.99

Last update: 12-29-2024


About this item

Black precision-etched scales
Durable cast zinc body
Rust proof stainless steel blade
Perfect for 90° and 45° marking
Can be used as a gauge for transferring measurements

Product information

Technical Details


Top reviews from the United States

Sarandi
5.0 out of 5 stars Solid build, accurate graduations, great value
Reviewed in the United States on September 3, 2024
I finally caved and bought this, and gladly so. I have a 12-inch combo (which I think is a more versatile tool if you could only have one), but this feels better to use because it's the right scale for most of my work.

The ruler adjustment mechanism locks tight with ease. The body is hefty and accurate, and functions perfectly as a small level. I wind up taking the ruler out and using just the body for all sorts of reasons. The integrated scribe is pretty standard, but I wind up using it more than I expected.

For the price, this is a must if you work with smaller though rough measurements. Doesn't hurt that it looks nice either.
Carlos Paredes III
5.0 out of 5 stars Perfect tool for quick small measurements
Reviewed in the United States on November 24, 2024
The design makes this tool super functional and versatile when it comes to measuring angles, making straight lines, or making smaller measurements without having to use a bulky measuring tape. This small combination square is easy to read as the numbers and ticks are dark, which makes them stand out. The metal construction makes it very sturdy, and the small size allows me to keep it handy in my carpenters belt. This tool has definitely helped me make smaller measurements a lot quicker than using a traditional speed square.
Customer image
Carlos Paredes III
5.0 out of 5 stars Perfect tool for quick small measurements
Reviewed in the United States on November 24, 2024
The design makes this tool super functional and versatile when it comes to measuring angles, making straight lines, or making smaller measurements without having to use a bulky measuring tape. This small combination square is easy to read as the numbers and ticks are dark, which makes them stand out. The metal construction makes it very sturdy, and the small size allows me to keep it handy in my carpenters belt. This tool has definitely helped me make smaller measurements a lot quicker than using a traditional speed square.
Images in this review
Customer image
Kenneth Lee
5.0 out of 5 stars Good quality, quite readable, perfect size for carpentry, not afraid to bang it around outside
Reviewed in the United States on November 27, 2024
I got this so I wouldn't have to bring my nice combination square outside for a building project. The price is quite low but it has a nice heft and the numbers and markings are easily readable. I haven't tested it to see how accurate it is as a square, but in my experience so far it is plenty accurate enough for dimensional lumber and outdoor work. And if it gets smashed with a board one day I won't cry about it. I got it in 16 inch size to help with laying out joists, and that has turned out to be a great decision, it also makes it easier to mark all the way across wider boards. I've bought a number of Irwin tools over the years, their hand clamps are awesome, and I greatly recommend this combination square.
Customer image
Kenneth Lee
5.0 out of 5 stars Good quality, quite readable, perfect size for carpentry, not afraid to bang it around outside
Reviewed in the United States on November 27, 2024
I got this so I wouldn't have to bring my nice combination square outside for a building project. The price is quite low but it has a nice heft and the numbers and markings are easily readable. I haven't tested it to see how accurate it is as a square, but in my experience so far it is plenty accurate enough for dimensional lumber and outdoor work. And if it gets smashed with a board one day I won't cry about it. I got it in 16 inch size to help with laying out joists, and that has turned out to be a great decision, it also makes it easier to mark all the way across wider boards. I've bought a number of Irwin tools over the years, their hand clamps are awesome, and I greatly recommend this combination square.
Images in this review
Customer image
Cool Beans
4.0 out of 5 stars Great tool
Reviewed in the United States on February 6, 2024
Quality made and built. Great addition to my tools for projects. Will need to check for square and accuracy.
Michael Y.
5.0 out of 5 stars IRWIN 6" SQUARE #1794469 - AFFORDABLE QUALITY AND ACCURACY
Reviewed in the United States on March 26, 2017
I just got this Irwin square today, and at this price point im very pleased. Nice heavy build quality along with touches like a brass lock nut, brass knobbed scribe that is firmly held in the casting by a friction sleeve and even a brass level plug really add to the build quality and heavy duty feel of the casting which is itself nicely done and doesn't look cheap -- I also have a comparable Stanley and I like this one better, the casting is heavier and thicker at the machined edges like a Starrett and feels like a bit better quality than the Stanley. The Irwins rule is nice and thick, easy to read and made of stainless steel not clear coated metal that will peel and rust as my Stanley has, but I have no use for the mm scale on the Irwin, I think they should make either one or the other and not force metric on you if you don't need it -- I don't know a single carpenter at least here in the US that works with mm. The casting borders are nice and thick on the machined sides, giving the look of maybe a Starrett or similar - However a Starrett is around $100+ and the casting on it is iron, which isn't as soft as the Irwins aluminum or zinc whatever it is - but the Irwins cost is MUCH lower and Starrett quality is legendary & in a different class - but you pay dearly for it and most of us cant afford that kind of luxury for it to be lost or stolen on a job sight. I checked my example for squareness soon as I got it as I saw a reviewer who said his was not, fortunately mine is right on so buyers should always check, indeed any tool that involves accuracy should be checked and verified. I did spend some time gently cleaning up the casting and rules corners and edges with a stone, lightly oiled the threads and moving parts and now it slides much smoother than when I first got it - it wasn't bad mind you just needed a bit of "optimizing" to make it good as it could be - Im very pleased and also glad I bought the 12" version as well elsewhere, what ive said in this review also applies to the 12" version and im very pleased with both examples. Empire makes one of similar quality and a stated accuracy within .002 of an inch and price is comparable but the Irwin wins out with a bit more brass bling, for example the level plug is plastic on the empire and brass on the Irwin, and the blue Irwin casting is an eye catcher if that's of any value. Oddly the Irwin makes no specific claims regarding accuracy on their packaging, but they should as it seems to exude enough quality to back it, at least my example does. Im even tempted to purchase the 16" version as these are such a good value. If I had any criticisms, it would be to be careful about dinging the softer aluminum casting on the machined corners,as this would cause out of square measurements, but it is a precision measuring tool and should be treated as such, but thats not always reality on a job site, and no square in this price range im aware of has an iron casting so im not saying the Irwin is at fault since all castings in this price ranges are made of similar material just stating fact, aluminum would be easier to ding than iron, but price is related to material cost so I still say for the price this square is a bargain and I don't see how you could find one any better for the price. Final word, there are many very good reviews for this square and that speaks for itself, you cant go wrong for the money its a really nice tool.
kalvinr11
5.0 out of 5 stars Heavy duty and handy square
Reviewed in the United States on December 7, 2024
I bought this for a project around the house. Transferring measurements from old pieces to new wood is super easy with it. The first one I was sent had an improperly made locking tab and it wouldn’t keep the ruler in place. After a few emails to Irwin, I was shipped a replacement tool and it works exactly as it should. The ruler has nice, easy to read markings on both sides in different graduations. Overall Irwin customer service helped keep this a 5-star review as it wasn’t very difficult to get the issue resolved.
Troy, just troy.
5.0 out of 5 stars Very handy, well built
Reviewed in the United States on December 10, 2024
The fit and finish is excellent, it has deeply engraved gradations allowing for a marking knife to not slip. The base unlocks with a quarter turn and slides with some friction but loosens up more with 2 full turns. A touch of lubricant makes it slicker/smoother.

The compact size is great when needing to ensure plumb/level and for building small projects.
Karen B.
5.0 out of 5 stars Good product and my husband likes it.
Reviewed in the United States on November 19, 2024
Ordered this square for my husband because the one he was using is an antique. Could not read the level bubbles any longer. This square was exactly what he wanted and is very well made. Just the right size.

Best Sellers in

 
 

Stanley FMHT74038A FatMax 25 Foot Tape Measure 2PK

4.6 4.6 out of 5 stars 4089
36.99
 
 

Laser Level Line Tool, Multipurpose Laser Level Kit Standard Cross Line Laser leveler Beam Tool with Metric Rulers 8ft/2.5M f

4.3 4.3 out of 5 stars 11939
9.95
 
 

THORVALD New 2-in-1 Carpenter Pencils with Finger Grip for Carpenter (Incl. 7 Leads + Sharpener) Solid Mechanical Pencils wit

4.6 4.6 out of 5 stars 4930
12.97
 
 

CRAFTSMAN 25-Ft Tape Measure with Fraction Marketing, Retractable, Manual-Locking Blade (CMHT37443S)

4.7 4.7 out of 5 stars 1565
17.98
 
 

DEWALT Stud Finder, 3/4”, Locate Framing Studs Efficiently with LED Arrows, Ideal for Wood and Metal, AAA Batteries Included

4.1 4.1 out of 5 stars 3212
11.97
 
 

Zozen Measuring Wheel in Feet and Inches, Collapsible with One key to Zero, Kickstand, Starting Point Arrow and Cloth Carryin

4.5 4.5 out of 5 stars 6500
39.99
 
 

Amazon Basics Retractable Tape Measure - 16 Feet, Pink

4.7 4.7 out of 5 stars 4652
11.12
 
 

Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacle

4.8 4.8 out of 5 stars 9877
21.97