Paint it with sea water, and wait 30 mins
Quote from: Mike, Lord of the Spammers! on April 25, 2010, 04:22:10 PMPaint it with sea water, and wait 30 mins I think he wanted to remove 0.5mm not the whole blade
0.5mm is quite a chunk I'd mount it to a block of wood and then rub it back and forth on a coarse sharpening stone. I've reduced thickness this way before. Its not perfect but it only takes minutes rather than hours with papers
I shall have to get one Paul
Quote from: Mike, Lord of the Spammers! on April 25, 2010, 04:22:10 PMPaint it with sea water, and wait 30 mins You get your own special reply Mike on account of the quality of your suggestion