I purchased a couple of EZE-LAP sharpening stones: single sided 8″x3″ 250 grit and double sided 8″x3″ 150/600 and 400/1200 grits. I tried to flatten a few plane irons for Stanley #4 and #4 1/2. At first they cut the metal well but after some use they became finer and I had to apply more and more pressure to cut any metal at all. It is a known issue with EZE-LAP that they became finer after some use so I expected that. EZE-LAP advertises, that after they wear our a bit they should cut even better but the opposite is the truth: the 150 and 250 grit stones became a polishing tools and my irons just glide over them and now they barely cut any metal at all. The 250 single sided is now a bit finer than the 400 double sided (I suspect it is not 250 at all). What is your experience with these stones? Should I have been very gentle with them all the time? I remember I was in the beginning but they were wearing out even then. Now I ended up with more or less useless stones after just a couple of days of use and I flattened only about five irons near the edge (combination of Stanley and Record Tungsten irons). I can still use them to sharpen bevels so they still work a bit but I think the flattening is over.
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