(Router Program)
G90 G17 G21
M3 S12000
G0 X421 Y836
G1 Z-12 F300
G1 X676 Y836 F600
G1 X676 Y2491 F600
G1 X421 Y2491 F600
G1 X421 Y836 F600
G1 Z5
G0 Z5
M30 ; End of program
M5
G0 X0 Y0
M30