This is the M5 stylus for Zeiss #A-5555-0057. It is a small ball styli with a stepped stem and a stainless steel base. It has a tungsten carbide stem and a ruby ball.
|Stylus Base Width (DG)||11.0 mm|
|Ball Diameter (DK)||1.5 mm|
|Overall length (L)||44.0 mm|
|Stem diameter (DS)||1.0 mm|
|EWL (ML)||19.0 mm|
|Stem material||Tungsten Carbide|