- Grade 00 gage blocks supplied with a Mitutoyo certificate of inspection that the blocks meet American Society of Mechanical Engineers (ASME) B89.1.9
- High-carbon, high-chrome steel provides high hardness and wear-resistance
- Rectangular shape for accurate wringing
- Nominal length in metric [millimeter (mm)] indicated with laser-etched, black characters
- Identification number etched in block for traceability