Main Function: block is the highest accuracy benchmark for converting broadcast wavelengths into physical length sizes. And by comparing and measuring, transfer the dimensional annotation techniques to accuracy gauges, measuring tools, and workpieces.
32PCS: There are 32 pieces blocks in the box and are well identified for convenient using and storing, choose and use at will!
Steel Material: Made of premium steel after heat treatment, the block has the characteristics of high accuracy, low roughness, good bonding force, and stable size.
Calibration Measurement: Thickness block group is ground and polished to have a very low micro finish; They have an accuracy of ± 0.00005in.
blocks have a high accuracy, low roughness, and good grinding force; Other accuracies used for calibrating instruments.