Ream cycle affects how a ream is performed. The choices are FF (feed-feed), FDF (feed-dwell-feed) FSR (feed-stop spindle-retract) and No drag . If FF is chosen the cycle is posted using the Bore(F-F) format in MBUILD. FDF will use the Bore(F-D-F) format, FSR uses the Bore (F-S-R) format and No drag uses the Bore (No drag) format.
See also Mbuild