CNC G-Codes & M-Codes Listing

G-Codes reference
A complete listing of G-Codes with definitions
Milling
G00 Position in Rapid
G01 Linear Interpolation.
G02 Circular Interpolation(CW)
G03 Circular Interpolation Interpolation(CCW)
G04 Dwell
G07 Imaginary axis destination.
G09 Exact Stop Check.
G10 Program Parameter Input.
G11 Program Parameter Input Cancel.
G12 Circle Cutting CW
G13 Circle Cutting CCW
G17 XY Plane
G18 XZ Plane
G19 YZ Plane
G20 Inch Units
G21 Metric Units
G22 Stored stroke limit On
G23 Stored Stroke limit Off
G27 Reference point return check.
G28 Automatic return to reference point.
G29 Automatic return from reference point.
G30 return to 2nd 3rd 4th reference point.
G31 Skip Function.
G33 Thread Function
G34 Bolt hole circle (canned cycle)
G35 Line at Angle(canned cycle)
G36 Arc (Canned Cycle)
G40 Cutter Compensation cancel
G41 cutter Compensation left
G42 cutter Compensation right
G43 Tool length compensation (Plus)
G44 Toll length compensation ( Minus)
G45 Tool Offset Increase.
G46 Tool Offset Decrease
G47 Tool offset double increase
G48 Tool offset double decrease.
G49 Tool Length Compensation Cancel.
G50 Scaling off
G51 scaling On.
G52 Local coordinate system setting.
G53 Machine Co ordinate system.
G54 workpiece co ordinate system.
G55 Workpiece co ordinate system 2
G56 Workpiece co ordinate system 3
G57 Workpiece co ordinate system 4
G58 Workpiece co ordinate system 5
G59 Workpiece co ordinate system 6
G60 Single direction positioning
G61 Exact Stop Check Mode
G62 Automatic Corner Override.
G63 Tapping Mode
G64 Cutting Mode
G65 Custom Macro Simple Call.
G66 Custom Macro Modal Call.
G67 Custom Macro Modal Call cancel
G68 Coordinate System rotation on
G69 Coordinate system rotation Off
G70 Inch Units
G71 Metric Units.
G72 User canned cycle.
G73 Hight Speed Peck Drilling cycle
G74 Counter Tapping Cycle
G75 User Canned Cycle.
G76 Fine Boring Cycle.
G77 User Canned Cycle.
G78 User Canned Cycle.
G79 User Canned cycle
G80 Cancel canned Cycle.
G81 drilling cycle.
G82 Counter boring cycle.
G83 deep hole drilling cycle.
G84 tapping cycle
G85 boring cycle
G86 boring cycle
G87 Back boring cycle
G88 Boring Cycle
G89 Boring Cycle
G90 Absolute positioning
G91 Incremental Positioning.
G92 reposition origin point.
G93 inverse time feed.
G94 Per minute feed.
G95 per revolution feed
G96 Constant surface speed control
G97 Constant surface speed control cancel
G98 Set initial plane  default
G99 return to retract plane.

M Codes reference.
A complete listing of M codes with definitions.
Milling
M00 Program Stop
M01 Optional Program Stop.
M02 Program End.
M03 Spindle On clockwise
M04 Spindle on counter clock wise
M05 Spindle Stop
M06 Tool change
M08 Coolant On
M09 Coolant off
M10 clamps On
M11 Clamps off
M30 end of program reset to start
M98 call subroutine command
M99 return from subroutine command