Drill bits date back to prehistoric times. Historians believe that as early as 35,000 BC Homosapiens discovered the usefulness of rotary tools for boring into materials. Early man used smooth sticks with a flint point attached to create the necessary holes. By the late Paleolithic era, man moved on from using flat sticks with stone points to bone, shells, and even antlers to do their workIt was not until the 13th century that man began using metal pieces as drill bits. Inventors discovered that if they used pieces of copper inside of the tubular stick, they could drill a hole by grinding the outer section of the area. Memphis TN 2022