I recently spent a long time grinding the bevels in on two chef knives. This took two day’s and at the end of each day I developed hives all over my body. The type of steel is 440c stainless and from what I can gather it has a high nickel content. So my question is has anyone else experienced this? Is this nickel allergy common amongst knife makers? Also, does anyone know if s30v has any nickel in it. I looked and it seems it does not. Lastly anyone wanna buy them because I cannot work on these anymore of I’m allergic to them.