This is the M3 ruby ball stylus #A-5003-0069. It has a ceramic stem.
This straight stylus can be used for simple features with which direct contact can be made. The ceramic stem is lightweight yet very hardwearing. 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 | Ceramic |
| Mass | 1.33 g |
