Quick question about soldering a motor & grinding a flat rotor spot.

[What's_nitro?]

Originally Posted by Byte

How long does it take to file a 5mm shaft? I have to grind a flat spot on a 1/2'' shaft in the future....

A couple minutes for a 5mm shaft. If it were larger I'd use a Dremel, though. A 1/2" shaft would take a lot longer. There's so much more material to remove and those files are too fine for big jobs.