This is the M2 ruby stylus #A-5003-4784. It features the carbon fiber stem.
Carbon fiber styli weigh around 20% less than tungsten carbide styli, making it a suitable material for long styli. Its thermal stability is also advantageous, particularly with very long styli, which makes it suitable for use in a production environment.
| Thread mount (DG) | M2 |
| Ball Diameter (DK) | 4.0 mm |
| Length (L) | 75.0 mm |
| Stem Diameter (DS) | 2.0 mm |
| EWL (ML) | 75.0 mm |
| Ball material | Ruby |
| Stem material | Carbon Fiber |
| Mass | 0.75g |
