Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch

Excellent square for cheap. Checked for square using the parallel line test and they look perfect to me. Highly recommend.

I use this little square for woodworking all the time. Absolutely all the time! You want to square up your table saw, you need this you're making a box you need to check the inside angles you need this. Very solid feel. I do recommend to apply some 3-in-1 oil as soon as you use it the first time to keep it from getting a little rust on it.

If you know what this is, you know what it for. It is quality built for exacting needs. I recently purchased a new miter saw this square is perfect for setting up my saw. Makes setup a straight forward job.

I wanted a small, accurate, square for setting up tools in a sharpening jig. This seems to fit the bill. 3-1/4” leg appears reasonably accurate at 90° with standard ‘flip-over’ test, and sides appear reasonably parallel with similar test. Compact. Will use a larger square for other projects, but they would be awkward in this application. I appreciate the blow molded plastic case to protect it from damage on my bench.

It's so square that even the cool people will approve of this otherwise boring tool. It's well made to very exacting specifications. Whether you are woodworking or metalworking, this square will prove to be useful.

I'm a machinist, it's paramount that my precision measuring instruments, tooling, etc. are 100% accurate. There are burs on all of the machined edges. I didn't even bother checking the squareness as I wasn't going to deburr it in order to do so. 11/13/25

Needed perfect 90 degree right angle to set up equiptment. This worked perfectly.

Just what I needed, I use the machinists squares to make sure my power tools are square, primarily the table saw