Just purchased a 80 year old house. It is a Ranch style house with
wood lathe and plaster. No chicken wire.

What is the best way to cut into the plaster and lathe to add
additional electrical boxes? I have seen were you could use a grider
and a diamond blade. I tried this and it seemed as if it was burning
the lathe.

Is the Dremmel the only way to go?

Thanks,

Bill