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

Works as advertised . Basic 123 blocks. Used for set ups in machine shop.

Not much to say. Its a chunck of metal. Mine specd out perfectly on my calipers. No complaints at all.

I got these to help tram and straighten the router and mount on my CNC machine. So far it works great for that and I’ve thought up some other good uses for these things as well. It’s a pretty simple item, and I purchased these as they were some of the most affordable. The quality seems great and they are a great addition to my workshop.

Bought these to use as everyday weights and straight edges, and in that regard they do exactly what I need. As many have mentioned, they come oiled. One of the other reviews mentions to clean them with denatured alcohol. Find it and follow their instructions, they know their stuff.

A little rough but accurate within .005. would recommend for clamping and blocking.

Updated: Crude and not imperial. Mitutoyo micrometer 0.98455x1.9695x2.9530. Anyone look at these numbers. The blocks that were sent as 1x2x3 blocks were in fact 25.00mmx50.00mmx75.00mm. Still crude threads and a few chunks that interfere with thru bolts.

I measured these blocks and they seem to be accurate as advertised. Not sure if we were to take precision measuring tools to thousands of an inch but if you take a tape measure and other measuring blocks they really do seem to be on point. So far I’m very satisfied with this product and for the price that’s why it’s a 5 star review.

Although these are designed with a machine shop in mind, they are very handy in the wood shop as well. These blocks are very precise and give you a quick way to measure 1, 2, or 3 inches frequently and precisely. Because these come in a set of 2, 4,5, & 6 inches is also possible. Blocks are great to marking cut points on a board. Also, very handy to ensure scroll saw and table saw blades are at a right angle. I was dubious about these at first, but now I cannot imagine my wood shop without them.

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.

Acabados algo burdos, pero la perpendicularidad es excelente.