Here is my GCode:
N0010 (Filename: Work1.tap)
N0020 (Post processor: MP1000-THC.scpost)
N0030 (Date: 01/01/2002)
N0040 G21 (Units: Metric)
N0050 G53 G90 G40
N0060 F1
N0070 (Part: Work1)
N0080 (Operation: Inside Offset, Layer 1, T3: Steel 3 mm)
N0090 M06 T3 F1500 (Steel 3 mm)
N0100 G00 Z10.0000
N0110 X22.6966 Y46.4400
N0120 Z3.0000
N0130 G28.1 Z3.00
N0140 G92 Z0.0
N0150 G00 Z0.0520
N0160 G92 Z0.0
N0170 G00 Z3.0000
N0180 M03
N0190 G04 P0.1
N0200 G01 Z1.5000 F100.0
N0210 G02 X25.2566 Y49.0000 I2.5600 J0.0000 F1500.0
N0220 G01 X49.0000
N0230 Y1.0000
N0240 X1.0000
N0250 Y49.0000
N0260 X25.2566
N0270 G02 X27.8166 Y46.4400 I0.0000 J-2.5600
N0280 M05
N0290 G00 Z10.0000
N0300 X0.0000 Y0.0000
N0310 M05 M30