Why do some kitchen knives have a hole near the tip of the blade?

The hole near the tip of a knife, particularly cheese knives, serves a specific purpose. It reduces the surface area of the blade that comes into contact with the food, particularly sticky items like cheese. This design helps to prevent the cheese from sticking to the knife, making it easier to slice cleanly. Some knives also have multiple holes or a serrated edge, enhancing this effect and making the cutting process smoother and more efficient.