[Code of Federal Regulations] [Title 30, Volume 1] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 30CFR57.7018] [Page 365] TITLE 30--MINERAL RESOURCES CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR PART 57_SAFETY AND HEALTH STANDARDS_UNDERGROUND METAL AND NONMETAL MINES --Table of Contents Subpart F_Drilling and Rotary Jet Piercing Sec. 57.7018 Hand clearance. Persons shall not hold the drill steel while collaring holes, or rest their hands on the chuck or centralizer while drilling. Drilling--Underground Only