EE WALKING UNDER AN OVERHEAD WORK AREA (15 FT. ABOVE), NEAR QUITTING TIME. TOOLS WERE PICKED UP BY EMPLOYEES ABOVE, A SMALL PIPE TOOL ACCIDENTLY DROPPED. SMALL PIPE TOOL STRUCK EMPLOYEE ON THE HARDHAT AND PARTIALLY ON SIDE OF NECK. EMPLOYEEWAS SENT TO MEDICAL CARE FACILITY. X-RAYS WERE NEGATIVE. HE WAS ALLOWED TO RETURN TO WORK WITHOUT RESTRICTIONS OR SCHEDULED FOLLOW-UP.