M00
Program stop
M01
Optional Stop
M02
End Program
M03
Start Spindle CW
M04
Start Spindle CCW
M05
Spindle Stop
M08
Coolant ON
M09
Coolant OFF
M10
Clamp Spindle Chuck
M11
Unclamp Spindle Chuck
M21
Tailstock Forward
M22
Tailstock Reverse
M23
Tread Chamfer ON
( During G76 or G92 Cycle)
M24
Tread Chamfer OFF
M30
Program End (Rewind to the begging)
M41
Low Gear
M42
High Gear
M88
High Pressure Coolant ON
M99
High Pressure Coolant OFF