I use one. I get mine from www.ragweedforge.com Remember that once a proper edge is put on a knife ( and sadly few knives come properly sharpened from factory) dressing or honing the edge with a ceramic or steel hone will usually suffice to make it "ship shape and Bristol fashion". People sharpen knives to much. You may need extra care dpending on the grind. The simple scandinavian grind is easy, and Fallkniven's Moran edge recommended maintenance involves small hand held plates. You might also consider honing paper for chisels. I got mine from Lee Valley in the USA and carry a few squares in my PSK. Diamond Hones are good for all steels, stainless and carbon. Some steels have a reputation for being harder to sharpen due to metallurgy and rockwell. Diamonds are still a girl's and knife's best friend ;O)