图中示例介绍了如何使用 REV 拉刀对衬套上方的方形孔进行拉削。与上个示例相同，该实例也涉及可定义为“特殊”工件的工件。加工方形孔很简单，仅需要重复四次相同的操作来加工正方形的每一个边，然后将 C 轴旋转 90°。使用 REV 拉刀执行这种加工不仅不用移动工件，还可实现方形孔在工件上的完美对中，进而实现毫无困难的正确测量。相反，使用传统机床（如插床），这种方形孔的加工非常耗时和困难，而且不可能实现方形孔和车削件之间的完美对中。对于加工方形或六边形孔，我们公司也可以为目前市场上的任何数控机床提供特定程序。

编程示例：

Highlighted in red only the values that require editing

O1000(RECALL MACRO O1000)

#1=0 (0=INT PROCESSING 1=EXT PROCESSING)
#2=0707 (TOOL NUMBER-WARNING: DO NOT ENTER THE LETTER T BEFORE 0707)
#3=15.0 (Z AXIS WORK START DISTANCE)
#4=0.2 (X AXIS WORK START DISTANCE)
#5=25 (HOLE OR SHAFT DIAMETER)
#6=8 (INSERT WIDTH)
#7=3.3 (PROCESSING DEPTH ON X AXIS RADIUS)
#8=30 (PROCESSING LENGTH ON Z AXIS)
#9=6000 (CUTTING SPEED IN MILLIMETRES PER MINUTE)
#10=0.05 (INCREMENT OF EACH PASS)
#11=0 (ADMITTED DRAUGHT ERROR ON LONGITUDINAL RADIUS OF 0.25 MAX)
#12=90 (DEPARTURE ANGLE 90°/45°)
#13=2 (NUMBER OF FINISHINGS WITHOUT REMOVAL)
#14=6 (NUMBER OF OPERATIONS)
#15=0 (C-AXIS ANGLE BEFORE PROCESSING)
#16=60 (ANGLE BETWEEN OPERATIONS)
#17=0 (CODE G RETURN 0= FAST 1=WORK)
#18=6000 (FEED BACK Z AXIS ACTIVATED ONLY IF #17=1)
#19=0 (WORKING ANGLE 0=CYLINDRICAL)
#20=0 (HELIX ANGLE +- INTERPOLATED WITH C AXIS)
#21=0 ( PRIMITIVE DIAMETER OF SPIRAL TEETH)
#22=35 (CODE M ON C AXIS)
#23=34 (CODE M OFF C AXIS)
#24=90 (CODE M BRAKE RELEASE C AXIS)
#25=89 (CODE M BRAKE LOCK C AXIS)
#26=8 (REFRIGERANT 8=ON 0=OFF)
#27=1 (BRAKE 0=NO 1=YES)

M98P8000 (RECALL MACRO)

(M99=BACK TO MAIN PROGRAMME) OR (M30=END OF PROGRAMME)