;()
N20 G20 G18 G64 G80 G90 M49 G40 G49 
N30 M08 
; TOOL definition
N50 M09 
N60 G00 X0.0 Z1.0 M05 
N70 G28 X0.0 
N80  ( Centre Drill )
N90 M06 T1 G43 H1 
N100 M03 G95 F0.002 
N110 G97 S1000  
N120 G00 X1.5 
N130 X1.5 
N140 X1.5 
N150 X1.5 
N160 X1.5 
; TOOL definition
N180 G00 X0.0 Z1.0 M05 
N190 G28 X0.0 
N200 G49 
N210  ( Twist Drill / Center Drill )
N220 M06 T2 G43 H2 
N230 M03 G95 
N240 G97 S1000  
N250 X3.0 
N260 X3.0 
N270 X3.0 
N280 X3.0 
N290 X3.0 
N300 X3.0 
N310 X3.0 
N320 X3.0 
N330 X3.0 
N340 X3.0 
N350 X3.0 
N360 X3.0 
; TOOL definition
N380 G00 X0.0 Z1.0 M05 
N390 G28 X0.0 
N400 G49 
N410  ( End Mill )
N420 M06 T3 G43 H3 
N430 M03 G95 
N440 G97 S1000  
N450 X4.5 
N460 X4.5 
N470 G04 P1 
N480 X4.5 
N490 X4.5 
N500 G04 P1 
N510 X4.5 
N520 M05 M30