Abstract: A composite tool having a preferred use as a surgical instrument has coacting resilient elongated members connected at one end to each other and movable towards and away from each other at the respective sized and shaped free ends to define a forceps or tweezers, and a scalpel blade supporting assembly slidably mounted between the coacting elongated members to move a scalpel therein from a retracted or concealed position between the coacting elongated members to an extended or cutting position, said forceps and scalpel blade supporting assembly including a locking assembly with a self-locking section for selectively, alternatively and interchangeably converting the forceps into a scalpel and vice versa wherein the forceps becomes the holder for the scalpel when the scalpel is moved from the retracted or non-cutting concealed position to the extended or cutting position, and an electrical connection on the coacting resilient elongated members to connect the composite tool to an electric circuit to permit the t