Review on 🔴 OMEX Machinist Hardened Square Ground: Precision Tool for Enhanced Accuracy and Durability by Dave Hammon

This is normal quality. The 3 inch square was not. The other 3 look pretty good. If you need something with a high level of accuracy, these are not worth buying. They are still good, but could be larger, the box has cut-outs in the hard foam, but the cut-outs are too small for two squares, DIN875 is written there, but there is no certification for squares.