• Purpose • Grade 0 — Used by specialized inspection staff as reference standards for calibrating high precision measuring equipment and grade 1 and 2 gauge blocks. • Grade 1 — Used in laboratories to inspect high precision workpieces, gauge blocks, and set measuring equipment. • Features • Hardness: 1350HV • High stability of material • Non-magnetic and non-conductive • Made of ceramic materials with high hardness, wear resistance, and long service life (5–10 times steel gauge blocks, 4–5 times carbide) • Corrosion resistant, no anti-corrosion treatment needed • Superior fine material, high precision ground, smooth and flat surface, high wringing force • Strictly made in accordance with DIN ISO 3650
