A knuckle knife, also known as a trench knife, is a type of combat knife that incorporates a set of knuckles into its design. The purpose of a knuckle knife is primarily for close-quarters combat and self-defense. The design features a blade attached to a handle that includes a set of finger holes, allowing the user to grip the knife firmly. The knuckles on the handle can serve as a makeshift brass knuckle, providing additional striking power and protection to the user's hand during combat.
Historically, knuckle knives gained popularity during World War I when soldiers sought weapons suitable for trench warfare. These knives were designed to be versatile, serving as both a stabbing weapon and a striking tool. The knuckles on the handle offered a means of self-defense and a way to incapacitate opponents in close combat situations.
It's worth noting that in many jurisdictions, the possession and use of knuckle knives may be restricted or even prohibited due to their potential for harm. Laws regarding weapons vary across different countries and regions, so it's important to consult local regulations and guidelines to understand the legality and permitted uses of such knives in a specific area.