Jakub Wieczorkiewicz, known as Poltergeist Works, is a Polish knifemaker active in the knife industry since 2024. His work combines a passion for knives, design, and a love for creative craftsmanship. The brand name he works under comes from his first knife project, with “Poltergeist” referring to a noisy spirit from the world of paranormal phenomena. His folding knives are characterized by utilitarian construction, distinct assembly screws, including a hex-shaped pivot screw, and often a mirrored version at the knife’s end. The handles feature milling, bevels, and angles, with ergonomic cutouts where the thumb moves to open the blade. In addition to custom projects, Poltergeist Works collaborates with brands like Real Steel and Bestech Knives.

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