It depends on the precision and accuracy you require. Volumetric flasks are "calibrated" to a particular volume, whereas the markings  on an Eppendorf tube are really printed for our convenience. They are _probably_ consistent since they are machine-made, but they make no guarantee about accuracy or precision.

I also agree with Jack Silver, although, if still want to do it, you can try with properly calibrated automatic pipettes, being aware of the temperature of the room and liquids.

I presume that you would prefer to prepare smaller volumes.  This can be done accurately using calibrated pipettes.  Test it for yourself

I also agree with Jack Silver. Eppendorf tubes are not meant to prepare standard solutions. If your aim is to prepare smaller concentrations,then use a 1.0mL  calibrated pipette as suggested by Paul Milham( thiis can measure a minimum of 0.01mL )and use a 5mL standard flask Or carefully carry out serial dilutions from a well prepared stock.