WEN 10423 3 x 2 x 1-Inch Steel-Hardened Precision 123 Blocks, Two Pack

These come shipped laden with oil to prevent rust, but once you remove all that, they are nicely machined.

I am a big fan of accuracy. They can be set up to measure from 1-6 inches. For anything in-between, I use a 6 inch digital caliper.

1-2-3 blocks are about precision, you get three true faces of precise dimensions and angle... usually they would cost you over 50$... but here... at this price, I have zero complaints... +/- 0.001mm maximum deviation on each side as verified by multiple precision calipers I have; that is.. one micron. I think this is more than acceptable for 99% of projects a home engineer can have. So Wen, thank you to give us access to this for this price. If I was very picky, I would only say that the corners are not perfectly deburred, at the corner of the rectangle, the edges are not perfect and curve .. e.g. the chamfer created by the deburring process is not equal in width along the whole length but gets wider at the ends, near the vertex of the cuboid/rectangular prism. This doesnt affect the overall use, so I am very happy... unless you need to align at this precision, but then youd be using some metrology quality blocks not this haha. Ok, so to everyone who has no blocks but uses a saw, get yourself a pair! Thanks again

Great blocks especially for the price.

These are a great price for a set of blocks. Fit and finish is good with no issues.

My set of these blocks came in today and I gave them a cleaning and then micd them, the ones I received are inch and not metric as some have said they received.

I went from never having these in the shop to using them almost every time im in the shop. Incredibly useful for a wide range of measuring, blocking, holding, squaring, etc.

Used them for the setup on my mill and they worked great. Threaded a bolt into a few random holes and they felt good. I have a few accusize blocks and they were identical

EXCELENTE RELACIÓN CALIDAD PRECIO

An excellent value.