1. G00         Rapid Positioning move

2. G01         Linear Interpolation

3. G02         Circular Interpolation Clockwise

4. G03         Circular Interpolation Counter Clockwise

5. G04         Dwell Command

6. G17         X Y plane selection

7. G18         X Z plane selection

8. G19         Y Z plane selection

9. G40         Cancel Cutter Compensation

10. G41         Cutter Compensation Left

11. G42         Cutter Compensation Right

12. G20         Inch Programming

13. G21        Metric Programming

14. G80         Cancel Fixed Cycles

15. G81         Common Drill Cycle  (Know for Final Examination)

16. G82         Counterbore  (Know for Final Examination)

17. G83         Peck Drill Cycle  (Know for Final Examination)

18. G84         Tap Cycle  (Know for Final Examination)

19. G85         Bore in and out Cycle (Know for Final Examination)

20. G86         Ream Cycle  (Know for Final Examination)

21. G92         Set or Reset Axis Values

22. G90         Absolute positioning

23. G91         Incremental Positioning

24. G93         Per Revolution Feed rate

25. G94         Per Minute Feed rate

26. M00         Machine Stop

27. M01         Optional Stop

28. M02         End of Program Stop

29. M03         Spindle On Clockwise

30. M04         Spindle On Counter Clockwise

31. M05         Spindle Stop

32. M06         Tool Change, return Quill to home position

33. M07         Mist or Auxiliary coolant

34. M08         Flood Coolant

35. M09         Coolant Off

36. M30         End of Sub-Routines (Know for Final Examination)

37. D             Tool Diameter Offset (Know for Final Examination)
38. F             Feed rate

39. I             X axis Modifier

40. J             Y axis Modifier

41. K             Z axis Modifier

42. S             R.P.M.

43. H             Tool Length Offset

44. A             Primary Rotary Axis around "X"  (Know for Final Examination)

45. B             Primary Rotary Axis around "Y"  (Know for Final Examination)

46. C             Primary Rotary Axis around "Z"  (Know for Final Examination)

47. G8           Deceleration command Off

48. G9           Deceleration command On

49.                T  Tool Callout