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Trustworthy video about MMC & LMC?

Hi, i've come across to this video & would like to know your opinions on that, is it trustworthy. Can i trust his teachings?
Thank you all who take the time to help a little beginner to the right track Wink

https://www.youtube.com/watch?v=UXZjTb3ZUQI&t=55s
Parents
  • Get a copy of Y14.5. Videos and other books can help explain things better, but in the end if you get into a discussion with someone, you had better reference the STANDARD and not some random video on you-tube or some obscure book you read on GD&T. Not to imply that they may not be valid but again, they are not what you would use in court.
Reply
  • Get a copy of Y14.5. Videos and other books can help explain things better, but in the end if you get into a discussion with someone, you had better reference the STANDARD and not some random video on you-tube or some obscure book you read on GD&T. Not to imply that they may not be valid but again, they are not what you would use in court.
Children