Innovative Self-Locking Folding Utility Knife

This folding knife's lock structure is simple and innovative. The whole piece weighs only 13g, making it an interesting folding knife. No supports needed. Simple to print. Takes about 1 hour. Assembly finishes in under 1 minute. Only 4 parts total (including blade). Only requires the blade - no other hardware or glue needed. Tested with Stanley brand blades. Compatible with slightly smaller blades. Cannot use larger blades. Assembly Guide:Show all parts Install blade holder onto handleSecure blade holder and handle with circular locking pieceInstall blade. Done.