This M2 ruby ball styli #A-5004-1714**. It features a tungsten carbide stem. Zirconia is a particularly tough ceramic material with hardness and wear characteristics approaching those of ruby. Its surface properties make it an ideal material for aggressive scanning applications on cast iron components.
** means: special
| Thread mount (DG) | M2 |
| Ball Diameter (DK) | 0.7 mm |
| Length (L) | 20 mm |
| Stem Diameter (DS) | 0.5 mm |
| EWL (ML) | 12.0 mm |
| Ball material | Zirconia |
| Stem material | Tungsten Carbide |
| Mass | 0.32g |
