Slicer Knife has a high chromium content to help it prevent rust. Contrary to public opinion, it is not rust proof. It is simply rust resistant, meaning it will resist rusting better than most metals, but if not taken care of can succumb to rust. It is not a very strong metal, thus knife blades made of it tend to be somewhat cheaper than most.

AUS-8 is a high carbon, low chromium stainless steel. While not quite as rust resistant as stainless steel, it tends to be a stronger metal, thus making it a little more expensive than stainless. VG-10 is a high carbon steel with differing amounts of chromium, vanadium, molybdenum, and cobalt. It is especially popular with kitchen cutlery manufacturers as it will hold an edge and does not become brittle even after it has been sharpened many times as is common with many hard steels.

440A is a durable high carbon stainless steel that is used by many manufacturers in the production of hunting knives and survival knives. Damascus steel was used by the Muslims in the crusades. Its exact composition is unknown today, although many companies and smiths have experimented in trying to recreate it. It is an especially durable metal that tends to be very expensive.

With the prevalence of electric knife sharpeners on the market making things easier for you, it makes sense that you might think that sharpening knives by hand is a relic of a bygone era. But when you think of the fact that you will sometimes be in certain areas and situations - such as a camping of fishing trip - that do not lend themselves well to lugging an electric knife sharpener around, you will realize that the old fashioned way of manually sharpening knives is still a skill that you should learn.