# What Do You Call This in English? (Technical Drawing)

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If there is 3 holes with diameter of 10 mm, in the technical drawing it should be written as 3 × ⌀10 mm.

What do you call/say the "3 × ⌀10 mm" in English?

Thank you

Edited by basty
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What do you call/say the "3 × ⌀10 mm" in English.

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Is it:

three multiply ten milimeter diameter?

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So long as its clear to understand, could use 3 x ⌀10, 3 x 10⌀ as your dwg is metric. I did not look for technical standards.

Some one else ?

Edited by BIGAL
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3X Ø10 is usually the way you see it. The Diameter Symbol should go in front of the hole size in case a tolerance is needed behind it.

If you mean as it would be spoken out, ten millimeter diameter holes in three places.

From GDT manual examples.

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What I meant is, how do you pronounce "3 × ⌀10" in English?

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I answered that as well. Same as the written out.

Ten millimeter diameter holes in three places.

Edit: changed 3 to three and 10 to ten and mm to millimeter.

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So, the English pronounce of "3 × ⌀10" is "10mm diameter holes in 3 places"?

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I edited the responses to spell out more.

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OK, thank you very much for the answer.

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I would like to ask again.

What is the pronounce of this (see attached image please in a red rectangle)?

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It's a tolerance value.  Tolerance is the total amount a dimension may vary and is the difference between the upper (maximum) and lower (minimum) limits.

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So, how do I pronounce it in English, in the technical drawing term?

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upper maximum and lower minimum diameter limits.

Or

0.624 diameter with  + - 0.001 tolerance. Sounds like an imperial size with a one, one  thousands of an inch tolerance. 1 / 1000.

Edited by BIGAL
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6 hours ago, basty said:

So, how do I pronounce it in English, in the technical drawing term?

It is a tolerance value.

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