ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,775, issued on Jan. 27.
"Screwdriver insert" was invented by Oliver Pistor (Wuppertal, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A screwing tool includes an elongate shaft which has, at each of its two ends, an output profile for insertion into a screwing tool insertion opening of a screw, and comprising a first insert and a second insert, which inserts: are each axially slidably arranged for conjoint rotation in a first and second cavity which are open toward an end face of the output profiles; each form, by means of their ends protruding from the cavity, an output profile; when in a position protruding from the cavity, are each suppor...