This is the M3 ruby ball stylus #A-5003-0063. It has a tungsten carbide stem.
This straight stylus can be used for simple features with which direct contact can be made. The tungsten carbide stem provides exceptional rigidity, particularly for styli with small stem diameters. Ruby tips are very hardwearing and are ideal for most standard applications.
| Thread mount (DG) | M3 |
| Overall length (L) | 50.0 mm |
| EWL (ML) | 50.0 mm |
| Stem diameter (DS) | 2.5 mm |
| Ball diameter (DK) | 5.0 mm |
| Ball material | Ruby |
| Stem material | Tungsten Carbide |
| Mass | 4.10 g |
