ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,893, issued on June 3, was assigned to Kirchhoff Witte GmbH (Iserlohn, Germany).

"Bit holder for holding and screwing a screw with a screw head in a mounting base" was invented by Alexander Hingst (Hagen-Fley, Germany) and Frank Rohlfs (Hagen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bit holder for holding and driving a screw with a screw head into a fastening base, comprising a clamping region for connecting the bit holder to a driving tool and a bit receptacle for inserting a bit suitable for driving the screw. The bit holder has at least one magnet arranged eccentrically relative to the bit holder with one pole facing the screw hea...