Assertion: caster | /r/HasProperty | 0.35 mm
Facets:
value: in diameter
type: OTHER
Source sentences:
text: Caster (0.35 mm),  a very fine sugar in Britain and other Commonwealth countries, so-named because the grains are small enough to fit through a sugar caster which is a small vessel with a perforated top, from which to sprinkle sugar at table.  
text: Granulated is larger and more coarse (I once read that granulated is about 0.5mm in diameter while caster is about 0.35mm in diameter, although I’m not really sure who would measure them!).