I had nothing better to do than to sit here with my lansky sharpener and hone the blades again today. I found out how difficult it is to get a good edge on a knife with that tungsten carbide coating.That took me about 30 minutes of work to get it done.I find that the 3 to 6 inch blades work best in the Lansky but my KA-BAR is another matter. I can make it work but I just cannot get the angle of the edge good enough to get it right. I dont want to use any thing that will mess up the finish of the blade and when you go filing and grinding on the knife I think it just defeats the intentional purpose of that knife. So, in retrospect, do any one of you know a better way to put an edge on my KA-BAR with out grinding on it?