I thought I would talk a little about engraving. I have a fair selection of gravers, round, flat, knife, and they are some of the best wax carving tools I have for my classes. I went to the wood shop teacher and he had some of his students turn handles out of hard wood scraps for them, so they are pretty nice for about $6 each. But, they are really quite difficult to use on metal. I have a fair amount of students slip and stab themselves, so for most metal engraving I have found a better way.

This is a Fordom hammer hand piece, and the tips are interchangable.

These some of the anvil tips that I have. From the left to right, they are as follows:

1. round graver tip (I had to alter this one. I also made a finer tip graver, but it was on the tool when I took the picture of these heads. I used a sander to grind the tips)
2. a great rounded bezel setting tip
3. flat graver tip (also adapted) 
4. a flat anvil head(I don't really use this that often, but it came in the kit. If anyone thinks of a use for it, let me know)
5. a high speed carbide bur (it just happened to be in there when I took the picture)
6.  a flat round anvil tip (very nice for setting smaller stones, in bead, box bezel, gypsy bezel, or prong sets. I also use it to mushroom rivet heads over in hard to get to places) 
7. a domed and polished round anvil head (great for texturing) 
8. a barrel anvil (I don't use this very often either)

I use these tips to engrave with. I also have a graver's vise which is really nice, but it was here when I got hired 12 years ago, I don't know if I would buy one now, because they are upwards of $450.
If your guys have input, ideas or questions I would love to here them.