In a message dated 06/11/05, jpopelish@........ writes:

> The balls are about 1/16th inch diameter, now.
> 
Hi John,

       If you buy BIC pens, they have a 1 mm dia (0.0394") carbide ball 
already fitted in a nice cone shaped brass holder, the shank tube 2.2mm dia x 10.9 
mm long. You remove the plastic case and the ink tube and clean them with 
methylated spirits.

       I use 5 mm dia stainless steel bearings on a solid triangular tungsten 
carbide turning tool bit.

       Regards,

       Chris Chapman

In a message=20=
dated 06/11/05, jpopelish@........ writes:



The balls are about 1/16th=20=
inch diameter, now.



Hi John,



       If you buy BIC pens, they have a 1=20=
mm dia (0.0394") carbide ball already fitted in a nice cone shaped brass hol=
der, the shank tube 2.2mm dia x 10.9 mm long. You remove the plastic case an=
d the ink tube and clean them with methylated spirits.



       I use 5 mm dia stainless steel bear=
ings on a solid triangular tungsten carbide turning tool bit.



       Regards,



       Chris Chapman