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In the knife and woodworking world they are called a burr. On razors they are much smaller but very uncomfortable to shave with. I will let others post about determining if there is one and how to...

STF ...

You could not have known it but the subject of "to sharp?" has been going on here at SRP for a long time. :)
And as you may have guessed the answer was never universally agreed to.
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I agree with Dave on how to remove the tape residue.

To sharp? .... yes, they can definitely be to sharp. . When you simply lay the blade on your face and it cuts you then it is to sharp.

Try...