Hand Auger Blades - Can I sharpen myself?

[Spidey]

Not much of an ice fisher but was thinking of taking the family snowshoeing and ice fishing to Spray this weekend if the wind behaves.

I have a hand auger and was wondering if I'm really careful, is it possible to sharpen the blades with my bench grinder or will I do more harm than good? The auger isn't dull, but isn't sharp either.

Or, any other suggestions for DIY sharpening?