I strongly recommend that you do a little reading before you spend any money on knife sharpening equipment.
"Everybody's Knife Bible" is the first book that I would recommend.
It was put together by Sgt. Don Paul, who is an ex-Green Beret.
Sgt. Paul has written an excellent book about the subject of knives and knife sharpening.
I would also like to recommend "The Razor Edge Book of Knife Sharpening," by John Juranitch.
You've just gotta sit down and read the books by Paul and Juranitch if you want to know how to put an edge on a knife.
LW.