I bought the Anraku frit piston from Delphi. Fortunately, they have stopped painting the working part of the tool so there are no paint flakes but there are still lots of metal filings that mix with the glass. I have tried to use the very powerful magnet that comes with it but I don’t know when I have gotten all the filings. Also, it’s almost impossible to get the filings off of the magnet. Any suggestions before I send it back? I was really looking forward to making my own frit.