Don't eq. Wrong approach for this sort of issue. EQ is for broad ranges and adjusting tone, not for removing a narrow band.
Use an FFT filter to knock out just the range/s you need to. You can fine tune that down to a Hz or two or make it wider or apply a series to drop the main frequency as well as the prominent overtones.
The buzz isn't that bad here but if you knock out everything below 100 Hz or so that removes almost all of it. I didn't play around to fine tune it but it seems it should be fairly easy to do (especially if you've really identified the offending frequencies).