Who really said it
Last year over one million quarter-inch drills were sold, not because people wanted quarter-inch drills but because they wanted quarter-inch holes
This exact sentence is not Clayton Christensen’s. It is credited to advertising man Leo McGivena, and its earliest documented printing is Percy H. Whiting’s sales manual The Five Great Rules of Selling (McGraw-Hill, 1947), pages 39–40, which introduces it with the words “Leo McGivena wrote” (Quote Investigator ↗). Christensen’s own drill line was much shorter — “People don’t want to buy a quarter-inch drill. They want a quarter-inch hole!” — and he credited Theodore Levitt, who had himself credited McGivena.
Last verified 27 Aug 2026 · how we verify · spot an error?