Need some help finding info on these motors please HY200 2226 0470 ACM8

[m_c]

http://www.probyte.fi/pdf/HY200-3424-0170.pdf
(just search for HY200 2226 0470, the ACM8 just depicts shaft sizes/special features, and doesn't normally make any difference to the basic spec)

That puts them at 4.7A coil, however you need to know how the motor coils are wired (are they 4,6, or 8 wires?) to know how to set the drive current.
Steps wise, use 1/8th microstep setting, as it's a reasonable compromise.

The motors won't be that great performance, but with those basic drivers, you probably won't get much of a performance improvement by changing them.