I just got a heck of a deal on a foredom hammer graver (old..) and flex shaft motor. I am looking to get started, and so far have little enough invested to get the correct gravers. Could anyone give me suggestions for which ones to get? I know you have to make them fit your powergraver, but some seem partially fit and others are completely untouched. Some are longer, some are short... etc. The tip section suggested 2 square gravers. I would love to purchase these - I just need to know what these would be! Thanks so much, this site is awesome.