All good advice. I'll add two cents more................

Even with a jig, you can make a horrible grind. While the jig will
help you accomplish the correct bevels on all the surfaces, it won't
prevent you from overgrinding any one of those surfaces. I've seen way
too many gouges where the nose of the nose of the tool is over ground
to the point of uselessness.

You should really find either a sample tool or good photo for every
grind you want to accomplish. then, when you grind, the profile will
be repeatable. When I'm learning or trying a new grind, I often grind
a tool with the grind and then shelve it for a sample. I use a second
tool for actual use. This way, I always have a comparison. Once I
learn it, then I let the sample tool go to another use.

If you go to the San Diego Woodturners website (www.sdwt.org) I have a
sharpening handout that you can download for free.

Joe Fleming - San Diego