This is the M5 stylus for Zeiss #A-5555-0053. It is a small ball styli with a stepped stem and a stainless steel base. It has a tungsten carbide stem with a ruby ball.
|Stylus Base Width (DG)||11.0 mm|
|Ball Diameter (DK)||1.0 mm|
|Overall length (L)||32 mm|
|Stem diameter (DS1/DS)||0.8 mm/1.0 mm|
|EWL (ML1/ML)||5.0 mm/12 mm|
|Stem material||Tungsten Carbide|