The extra metal near the hilt on some double-edged knives is known as the "guard" or "finger guard." Its primary purpose is to protect the user's hand from slipping onto the blade during use. The guard serves as a barrier between the handle and the blade, helping to prevent accidental injuries to the user's fingers.
In a double-edged knife, where both sides of the blade are sharpened, the finger guard becomes especially important. Since both edges are sharp, there is an increased risk of accidental cuts or injuries if the user's hand were to slip forward onto the blade.
The finger guard can take various forms, depending on the knife's design and intended use. It may be a protrusion of metal that extends downward from the blade or a slight bulge in the handle's design that acts as a stopper. Some finger guards are quite pronounced and offer substantial protection, while others may be more subtle.
When using any knife, it's essential to maintain a firm grip and use proper cutting techniques to minimize the risk of accidents. However, having a finger guard on a double-edged knife adds an extra layer of safety, making it less likely for the user's hand to slip forward and come into contact with the blade.