2Pcs 1-2-3 Precision Blocks Ultra Precision Blocks Set Matched Machinist 123 Hardened Milling Tool 23 Holes

These come packed in oiled paper to reduce the chance of corrosion. It's a bit of a faff to get this all of and it does leave a residue on the blocks, not an issue just a bit messy when unpacking.Handy to have around the workshop/garage and have a variety of great uses

Does exactly what it’s intended to do

3-2-1 alignment and gauge blocks. Seem OK but will need to check them for accuracy. If the are better than 1/10 thou (0.25um) they will be excellent. Ideally I would have liked and been happy to pay for a protective box to a store and protect them.

These 1-2-3 blocks are so useful. I use them all the time for little DIY projects. They are good weights and can hold things at accurate 90 degrees when needed.

What more can I say, mine were well within an acceptable tolerance for even precise work. It'd just be nice to know at what temperature they're supposed to be the correct size.

Good value for money. Decent accuracy, both blocks measure identically. No complaints.

Precision seems accurate. Good finish, no burrs. M12 threads. Good packaging corrosion protection for the milled blocks. Anyone complaining about grease doesn't know much about metal. Use denatured alcohol (methylated spirits) or IPA to clean.

I find these useful for my woodwork. They come covered in grease but I was able to wipe this all off with kitchen roll within 5 minutes. All the faces are at right angles according to my carpenter’s square. If you are going to buy these it would be useful to have some clamps that fit through the holes.

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