4026-12-154T 4 Piece Set of Solid Machinist Square 2-3/8, 3, 4 and 6 Inches (60, 75, 100 and 150 mm) DIN 875/1 (Square w/in 18 microns or 0.0007 Inches) 4026-12-154T

These were all as square as advertised. I use them for wood working and have no way to test to a finer degree of accuracy. I have absolutely no complaints. I don't use the smallest size very much, but it has been useful. I wish instead that it came with one size larger like a 200mm/8in long blade. I knew that when buying though. Also the box is not worth keeping to store them, but I don't plan to store in the box anyways, if you want to you probably have to pay more to get a set with a nice case.

Mine arrived a little knicked up, but that could be a result of the "used like new" purchase. Otherwise they're more accurate than I'll ever need.

I bought these for woodworking and am very pleased with the quality and value. They arrived well packaged with a heavy coating of oil to prevent rust. I cannot easily measure just how perfect of a 90 deg angle each piece has, but they all appear to be square to each other, when stacked in various arrangements, so I will call that good enough for my intended purpose.

I purchased this item to use on wood. After a short period of time, approximately 6 months which was not daily, the plating wore off which allowed the steel below to rust. Don't waste your time purchasing this item. You will regret it.

Not very good do not recommend buying these

For the price I expected better. I specifically purchased this because of the reviews thinking this would be a better quality product. I plan on using this for woodworking primarily so I can deal with the imperfections but for anyone wanting to use this for anymore more precise I would not recommend this. Mine came with a few rust spots and dings. 100x70 vertical piece is not set precisely as shown in the pictures so it does not line up exactly to the large 150x100 piece. They are fairly square everywhere else though.

Solid wide base plants them firmly in upright position excellent machining nice not to have deburr, inside and outside parrell and square when checked with starrett master square. pleased with my purchase do not feel like I settled and thought it desired my time to write a review THANK YOU Tom maker of things

I love these things and they are a great value. I keep at least one in my shop apron at all times. The packaging was rather impressive. Each square was in a cut out foam slot that fit the item. They are also covered in a protective oil of some kind.