This is the star styli #A-5555-3844. It has an M8 thread, stainless steel stem, and a ceramic ball including certificate.
| Thread mount | M8 |
| Overall length (L) | 140.0 mm |
| Base Width (DG) | 24.0 mm |
| Ball diameter (DK) | 25 mm |
| SW | 22.0 mm |
Sale!
(A-5555-3844) M8 SS Datum sphere with ceramic ball, L 140 mm, for Zeiss applications
$446.25
A-5555-3844 | 
M8 stainless steel Datum sphere with ceramic ball | M8 | Renishaw
| Weight | 0.011023113109244 oz |
|---|
