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need information concerning metric drawing
- Thread starter theonics
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Theonics- Your tolerance is a hole tolerance. Capital letters are for holes. H7 is position and quality.
In your case: 25H7 = 25mm -0, +21. Quality H7 can be achieved by reaming.That is -0.000mm, + 0.021mm.
My advise: If you are in the machining business - study DIN/ISO 286. Google it! You will need it.
Go here for more info: Good luck.
In your case: 25H7 = 25mm -0, +21. Quality H7 can be achieved by reaming.That is -0.000mm, + 0.021mm.
My advise: If you are in the machining business - study DIN/ISO 286. Google it! You will need it.
Go here for more info: Good luck.
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