I have gotten stuff back from Boggs with no sign of the dull grey you get with
the acids I have used.  I akways thought they used acidm but check this out:

http://www.boggstool.com/page1.htm
l

Also, the website says:


Ed Minch




On Oct 10, 2015, at 2:23 PM, Chuck Ramsey  wrote:

> 
> Does anyone know if the edges of steel files are permanently damaged (or
> weakened) by soaking in acid?