How to make your own wax carving tools?

Hi,

I am relatively new to wax carving, and would like to make a few
additional tools. In other posts several people mentioned setting
bits of steel in a wood dowel, how would I do this? Also, my
favorite tool is the inside curve of a large j shaped hook. How do I
sharpen a curved part? What shapes do people find most useful? Any
other suggestions?

Thanks!