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DID YOU KNOW...
Fel-Pro® holds gasket tooling to a tolerance of just 5 microns – but just how precise is that? A micron is one-millionth of a meter. 5 microns is equal to .005mm or about 0.00020”.

The naked eye can see objects that are about 40 microns or larger.
To put that into perspective:

   6-8 microns – Average diameter of a red blood cell
   17-181 microns – Average width of a human hair
   300-350 microns – Average length of the side of a grain of table salt

This extremely tight tolerance ensures every Fel-Pro gasket seals dependably, just like the one before and after it!
DID YOU KNOW...
Fel-Pro® holds gasket tooling to a tolerance of just 5 microns – but just how precise is that? A micron is one-millionth of a meter. 5 microns is equal to .005mm or about 0.00020”.

The naked eye can see objects that are about 40 microns or larger.
To put that into perspective:

   6-8 microns – Average diameter of a red blood cell
   17-181 microns – Average width of a human hair
   300-350 microns – Average length of the side of a grain of table salt

This extremely tight tolerance ensures every Fel-Pro gasket seals perfectly, just like the one before and after it!