I purchased one of these for me and my students to try out. We absolutely love this product. All 20 students found this better then any product on the market. This does not make your saw blades greasy or you drill bits. Pepe tools sales butter blade and it will interfere with your work, getting your projects clogged up and you have to stop. This also effects any metal that you use, having work extra hard to clean before soldering. This is taking away from your time. Yes, silversmiths use beeswax and candles but they don not keep your blades and burr bits conditioned like Otto Frei's Stay Sharp. The only thing you need to do is use your bench brush to wipe away any extra flake from using Stay Sharp.