Hard-Rock Drilling Facility (IMAGE) DOE/Sandia National Laboratories Caption Elton Wright examines a prototype drill bit used for an experiment in Sandia's Hard-Rock Drilling Facility. Credit Photo by Randy Montoya Usage Restrictions Educational and media purposes only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.