Groz 4-Piece Machinist Steel Square Set | 2-in, 3-in, 4-in & 6-in Squares | 48-72 Micron Squareness | Hardened Steel | for General Purpose, Machinery & Woodworking Applications (01110)

The products are square enough to calibrate woodworking tools successfully. Seem to be high quality and a good value.

I pulled it out and immediately tested against my squares. I terestingly, I found I could see a gap between this and my smaller machinist squares. I couldn't figure out what was going on, then I saw one bur on each old square. Removed them and no gap. Then I put it against my 123 blocks. Gap again.Using the digital angle finder and this tool showed 90 while my 123 was 89.9. so I think it's probably square enough for woodworking, which is what it's supposed to do.I love how big this is, it will really help with ensuring my measurement tools are accurate. I highly recommend.

I got this square to fill in a set I had. My older Groz squares have the symbol and specs printed on blade.

Nice set. Does not come with case but other then that it’s a very nice set of squares and accurate.

No more guessing if my cuts are 90 deg square.

This is a handy tool that fits in confined areas. Well machined so should last and last. The price is well matched to the quality.

This is a great size for setting up many types of wood shop machines. As a general purpose square it is excellent value. I haven't checked it for ultimate machine shop accuracy, but is more than accurate enough for the uses I put it too.

this works great for what I needed. seems to be very accurate.