But there is variations among individual stones - slips, depending if they are natural and where they were mined, or made with their powder and a binder - glue. In order of speed of cutting, and surface finish, emery is the fastest and coarsest, then arkansas, then ceramic, then black arkansas, then jasper. Using them with a tailstock guide, I definitely get higher quality results, and faster. My coarse and fine sapphire files, and sapphire burnisher, and laps with abrasive - polishing compounds have pretty much replaced all my stones and slips for lathe watch work. I have many, and have used them quite abit. If you are used to using Arkansas stones, and don't mind dressing them etc, and can freehand keep your pivots straight and corrrectly formed, other diameters flat and square, okay.īut if you are starting out, or looking for a good system, and want to make staffs etc that look like high quality factory staffs, and work efficiently, pass on them, especially at $10 each.Īs far as jasper stones and ceramic stones, I feel what I said about arkansas stones also applies. And you can't use them with a tailstock guide system. don't talk about them because they were not around then. I have not used ruby stones or Degussit stones, but have heard very good things about them. Other advantages are it does not wear at all, very easy to keep clean, and can be made to be used with a tailstock guide system. It cuts faster, and leaves a finish a little finer than the Arkansas. I used to use them, but now use a coarse sapphire file when I used to use a arkansas stone. Even though their use was standard practice up till recently, and their use advised in all the repair books. I am thinking that today, arkanas slips for watch lathe work is somewhat obselete.
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