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Old 12th Jul 2021, 6:16 pm   #3
The Philpott
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Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,108
Default Re: imperial allen key sizes

3/64" equals a very small amount under 47 thou (0.047") so i would HOPE that would be close enough....or they could actually be identical.

Oddly, the metric system was invented by a Brit!

(Edit- Yes, 1.27mm does equal 0.050" !)

Dave
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