HO scale 3'1.5" 3-hole disc wheels

Unremarkable HO-scale (1:87, 3.5mm:1ft) 3'1.5" diameter 3-hole disc wheelsets with 24.5mm pinpoint axle lengths for HO wagons, such as the mineral wagon and/or chassis I have uploaded, and they should be interchangeable with other wheels for this modelling scale. There must be some nice ones around already, but if you are ordering  from Shapeways anyway and you need a few to keep everything rolling, or you just want to try them out, you might appreciate the chance to add them to your basket for (probably) no extra postage.
Flange depth is about 0.5mm which is pretty fine.
UPDATE 2021-12-10 Increased the flange depth to about 0.8mm, File version 03
UPDATE 2022-02-09 Decreased the back to back gauge by 0.5mm, File Version 04