MIL-D-80251A, MILITARY SPECIFICATION: DIMPLING MACHINES, HOT AND COLD PROCESS, SQUEEZE TYPE, FLOOR MOUNTED (19-JAN-1984) [NO S/S DOCUMENT]

MIL-D-80251A, MILITARY SPECIFICATION: DIMPLING MACHINES, HOT AND COLD PROCESS, SQUEEZE TYPE, FLOOR MOUNTED (19-JAN-1984) [NO S/S DOCUMENT]., This specification covers floor mounted, squeeze type dimpling machines. These machines are used to form shallow, conical depressions around rivets or screws , allowing the fastener heads to fit flush with the surface OF the sheet metal.