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I am wwondering what a certain parts of the drawing mean. For example in the picture below, what mens 24x in front of the some dimensions? In the down-right corner, what are numbers 0.1 and 0.05 for and M within the circle?

A part of the drawing

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    \$\begingroup\$ How many pins does that package have? \$\endgroup\$ – PlasmaHH May 11 '17 at 8:14
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    \$\begingroup\$ You might get better answers if you looked at some of your questions and formally accepted some more answers. It's a small price to pay for getting good info from the guys here. \$\endgroup\$ – Andy aka May 11 '17 at 8:20
  • \$\begingroup\$ I must admitt I have never looked how this kind of information sharing works, but I accept your advice. \$\endgroup\$ – Nexy_sm May 11 '17 at 9:37
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The Feature Control Frame (rectangular box) contain the geometric characteristics symbol, and the form, runout or location tolerance. You can find more information on this PDF. The M within a circle stand for Maximum Material Condition (MMC)

"24x" means that the description is true for the 24 pins of the part.

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