They said the iPhone 5 are identical to a few microns because of this process. Do you know how accurate a micron is? This measurement is often used on scientific or medical instruments. I am sure there are other smartphones out there that are identical to a few MILLIMETRES (1000 microns). The iPhone 5 has a tolerance of just 7 microns.
This is by far the most precise piece of electronics Apple has ever built.
Actually yes I do.
One part of my job actually involves making VERY high tolerance gauges, one at a time, and I have to work to ONE MICRON sometimes, and no computerised machine for me to use. All good of fashioned skill.
7 Microns would be luxury for me on the gauges I make.
----------
You ever work with CNC machines before? There are always differences from part to part.
Nothing wrong with "hand fitting" to find the cleanest mating of surfaces. The consumers will certainly appreciate it.
Yes I do and I work with people who do.
And we can repeat make items to closer than 7 microns thank you very much.
Out of Medical grade Titanium, Stainless Steel and Cobalt Chrome.