如图所示，使用 REV 拉刀可以在工件内部执行键槽加工，即使没有退刀槽也可以。无退刀槽的拉削可大幅缩短加工时间。这种加工方法适用于工件内部退刀槽加工困难的情况，或者在退刀槽有削弱结构的风险时使用。
对于在没有退刀槽的情况下拉削键槽，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 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=45 (DEPARTURE ANGLE 90°/45°)
#13=2 (NUMBER OF FINISHINGS WITHOUT REMOVAL)
#14=1 (NUMBER OF OPERATIONS)
#15=0 (C-AXIS ANGLE BEFORE PROCESSING)
#16=0 (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/WITH VALUE=CONICAL)
#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)