For every food there is a suitable knife to cut it: there are fish knives, bread knives, vegetable knives and ham knives. You need a suitable knife, extra sharp, extra thin, with a flexible blade and a round tip. The ham knife can also be used to slice salmon, roast beef and other types of meat.
The blade of a ham knife is usually made of stainless steel, not very wide and with a rounded tip; the low blade provides more flexibility than the high blade; it also needs to be long and thin to achieve a precise cut, even horizontally.
With a ham knife, you get incredibly thin slices; you avoid crumbling them, as would happen, for example, using a serrated knife. In addition, the flexibility allows you to reach all parts of the ham. In addition, unlike an ordinary kitchen knife, the ham knife allows you to perform the cutting operation without exerting excessive pressure; therefore, you are able to cut effortlessly while maintaining control over the thickness of each slice. A slice of ham, cut thinly, tends to melt in the mouth, allowing its aroma and flavor to be fully appreciated.