65 Barrucuda fuse box

I have a 66 Valiant and the fuse box didn't look much better. I just took the fuses out and used a small drill-attached wire wheel thingy (but long and thin) attachment to clean them up a bit. Put on some electrical grease and just re-assembled.
Thanks. Can you tell me more about what you used? I was thinking the pointed portion of these brushes I have.

https://www.amazon.com/gp/product/B0CNG9XTCL/?tag=fabo03-20