CNC G Codes M Codes

Standard CNC G Codes - Vertical and Horizontal Mills

Commonly Used "G" Codes - CNC Mill
G00 - Rapid Positioning			G52 - Local Coordinate Setting
G01 - Feedrate Positioning			G53 - Machine Coordinate Setting
G02 - Arc Clockwise			G54 - Workpiece Coordinate Setting #1
G03 - Arc Counterclockwise			G55 - Workpiece Coordinate Setting #2
G04 - Dwell			G56 - Workpiece Coordinate Setting #3
G05 - High Speed Machining			G57 - Workpiece Coordinate Setting #4
G07 - Imanaginary Axis Designation			G58 - Workpiece Coordinate Setting #5
G09 - Exact Stop Check			G59 - Workpiece Coordinate Setting #6
G10 - Program Parameter Input			G60 - Single Direction Positioning
G11 - Program Peramater Input Cancel			G62 - Automatic Corner Override
G12 - Circle Cutting   CW			G63 - Tapping Mode
G13 - Circle Cutting   CCW			G64 - Cutting Mode
G17 - X - Y Plane			G65 - Custom Macro Call (Simple)
G18 - X - Z Plane			G66 - Custom Macro Call (Modal)
G19 - Y - Z Plane			G67 - Custom Macro Call Cancel (Modal)
G20 - Input in Inch Units			G68 - Coordinate System Rotation   ON
G21 - Input in Metric			G69 - Coordinate System Rotation   OFF
G22 - Stored Stroke Limit   ON			G70 - Input in Inch Units
G23 - stored Stroke Limit   OFF			G71 - Input in Metric Units
G27 - Reference Point Return Check			G73 - High Speed Peck Drilling Cycle
G28 - Automatic Return to Reference Point			G74 - Left Hand Tapping Cycle
G29 - Automatic Return from Reference Point			G76 - Fine Boring Cycle
G30 - Return to 2nd, 3rd or 4th Reference Point			G80 - Canned Cycle Cancel
G31 - Skip Function			G81 - Drilling Cycle (Canned)
G33 - Thread Cutting			G82 - Counter Boring Cycle (Canned)
G34 - Bolt Hole Circle (Canned Cycle)			G83 - Peck Drilling Cycle (Canned)
G35 - Line at Angle (Canned Cycle)			G84 - Right Hand Tapping Cycle (Canned)
G36 - Arc (Canned Cycle)			G85 - Boring Cycle (Canned)
G40 - Cutter Compensation Cancel			G87 - Back Boring Cycle (Canned)
G41 - Cutter Compensation Left			G90 - Absolute Positioning
G42 - Cutter Compensation Right			G91 - Incremental Positioning
G43 - Tool Length Compensation (Plus)			G92 - Reposition Origin Point
G44 - Tool Length Compensation (Minus)			G94 - Feed Per Minute
G45 - Tool Offset Increase			G95 - Feed Per Revolution
G46 - Tool Offset Decrease			G96 - Constant Surface Speed Contrpl
G49 - Tool Length Compensation Cancel			G97 - Constant Surface Speed Control Cancel
G50 - Scaling   OFF			G98 - Set Initial Plane (Default)
G51 - Scaling   ON			G99 - Return to Rapid Plane

Standard CNC G Codes - Lathes

Commonly Used "G" Codes - CNC Lathe
G00 - Rapid Positioning			G57 - Workpiece Coordinate Setting #4
G01 - Feedrate Positioning			G58 - Workpiece Coordinate Setting #5
G02 - Arc Clockwise			G59 - Workpiece Coordinate Setting #6
G03 - Arc Counterclockwise			G61 - Exact Stop Check Mode
G04 - Dwell			G62 - Automatic Corner Override
G07 - Feedrate Sine Curve Control			G63 - Tapping Mode
G10 - Data Setting			G64 - Cutting Mode
G11 - Data Setting Cancel			G65 - User Macro Call
G17 - X - Y Plane			G66 - User Macro Call (Modal)
G18 - X - Z Plane			G67 - User Macro Call Cancel (Modal)
G19 - Y - Z Plane			G70 - Finishing Cycle
G20 - Inch Units			G71 - Turning Cycle
G21 - Metric Units			G72 - Facing Cycle
G22 - Stored Stroke Check ON			G73 - Pattern Repeat
G23 - Stored Stroke Check OFF			G74 - Drilling Cycle
G27 - Reference Point Return Check			G75 - Grooving Cycle
G28 - Automatic Zero Return			G76 - Threading Cycle
G29 - Return from Zero Position			G80 - Canned Cycle Cancel
G30 - 2nd Reference Point Return			G83 - Face Drilling Cycle
G31 - Skip Function			G84 - Face Tapping Cycle
G32 - Thread Cutting			G86 - Face Boring Cycle
G36 - Automatic Tool Compensation			G90 - Absolute Positioning
G40 - Tool Compensation Cancel			G91 - Incremental Positioning
G41 - Tool Compensation Left			G92 - OD Thread Cutting Cycle
G42 - Tool Compensation Right			G94 - Face Turning Cycle
G46 - Automatic Tool Compensation			G96 - Constant Speed Control
G50 - Coordinate System Setting			G97 - Constant Speed Control Cancel
G52 - Local Coordinate System Setting			G98 - Feedrate Per Time
G53 - Machine Coordinate System Setting			G99 - Feedrate Per Revolution
G54 - Workpiece Coordinate Setting #1			G107 - Cylindrical Interpolation
G55 - Workpiece Coordinate Setting #2			G112 - Polar Coordinate Interpolation
G56 - Workpiece Coordinate Setting #3			G113 - Polar Coordinate Interpolation Cancel

Standard CNC M Codes - Mills and Lathes

Commonly Used "M" Codes - Mill & Lathe
Mill	Lathe
M00 - Program Stop	M00 - Program Stop
M01 - Optional Stop	M01 - Optional Program Stop
M02 - Program End	M02 - Program End
M03 - Spindle Clockwise	M03 - Spindle Clockwise
M04 - Spindle Counter Clockwise	M04 - Spindle Counter Clockwise
M05 - Spindle Stop	M05 - Spindle Stop
M06 - Tool Change
M07 - Thru Spindle Coolant ON	M07 - Flood Coolant #1 On
M08 - Flood Coolant ON	M08 - Flood Coolant #2 On
M09 - Coolant Off (all coolant)	M09 - Coolant Off
M10 - Table Pallet Clamp
M11 - Table Pallet Unclamp
M12 - Shower Coolant On
M14 - Spindle Air Blow On
M15 - Spindle Air Blow Off
M16 - Air Blast / Tool Changer
M18 - Air Blast Off
M19 - Spindle Orientation
M29 - Rigid Tapping
M30 - End Program	M30 - End Progarm
M60 - Pallet Change
M61 - Load Pallet #1
M62 - Load Pallet #2
M98 - Sub Program Call	M98 - Sub Program Call
M99 - Sub Program Cancel	M99 - Sub Program Cancel