Wilhelm Emil Fein  Wilhelm Emil Fein (born 16 January 1842 in Ludwigsburg; died 6 October 1898 in Stuttgart) was a German inventor. He invented the worldwide first portable electric drill. In 1867, he and his brother Carl founded their own company. In 1895, the first portable handheld drill was created by the two brothers. It was however not the first worldwide electric drill, which had been invented by Arthur Arnot in Australia six years earlier.