These bars are poorly made and no spot along the length of any of them actually measures 3mm, they're all undersized and the diameter varies depending on where on the rod you measure. I bought these for use with some 3mm bearings, but they're useless since the bearing loosely slides around, they were either supposed to be press fits or snug enough to use glue or retainers.
Verified purchase: Yes | Condition: New
Good value, mine came straight and true.
Verified purchase: Yes | Condition: New
Good quality showed up early and is exactly what I needed.
Verified purchase: Yes | Condition: New
It's exactly as expected.
Verified purchase: Yes | Condition: New