G00
Rapid Motion
G01
Straight line Motion
G02
Circular Motion (CW)
G03
Circular Motion (CCW)
G04
Dwell
G20
Inch Mode Selection
G21
Metric Mode Selection
G28
Zero return command
G40
Cancel cuter radius comp.
G41
Cutter Comp left
G42
Cutter Comp right
G43
Tool Length Comp
G81
Drilling Cycle
G83
Peck drilling Cycle
G84
Tapping Cycle
G90
Absolute Mode
G91
Incremental Mode
G98
Initial Plane
G99
R Plane