I am a gadjet gurue,
and a tool hoarder.
I use a lot of top line tools.
Then a lot of cheap stuff.
So with that.
There is a $10.oo grinder @ Harbor freight
Link:
https://www.harborfreight.com/rotary...-pc-63235.html
This includes (Very small) cutoff disc.
You must have the patience of (________) you can fill the blank
I have saved $300.oo tooling that would have been junk. by grinding small screws out.
I would suggest buying the Big tool of your choice.
Then use a small grinder like this to cut the corners.
.