"DESIGNED PRIMARILY FOR PRODUCTION APPKICATIONS IN ALUMNINUM AND MILD STEEL. THE PROCESS INCLUDES DEVELOPMENT OF THE STARTING HOLE,COLD WORKING THE HOLE,AND POST-SIZING OF THE HOLE TO ACCOMMODATE THE REQUIRED INTERFERENCE FASTENER OR FASTENING DEVICE. USED ON A VARIETY OF PULLER UNITS FOR REWORK APPLICATIONS IN COLD EXPANSION PROCESSES; STANDARD TOOL DIAMETER NUMBER 6-1-N"