This is the M3 tungsten carbide styli for Zeiss #A-5555-0265. It has a stainless steel base, tungsten carbide stem and ruby ball.
Styli | M3 |
Ball Diameter (DK) | 4.0 mm |
Length (L) | 33.0 mm |
Base Diameter (DG) | 4.0 mm |
EWL (ML) | 23.0 mm |
Stem Diameter (DS) | 2.5 mm |
Stem material | Tungsten Carbide |
Mass | 2.5 g |