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Jewelry burrs
Do you know you can have your jewelry burrs resharpened for half the new
burr price? |
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On Mon, 26 Sep 2005 17:43:14 -0700, in =B8=07=F5 "huntyer" =
wrote: Do you know you can have your jewelry burrs resharpened for half the = new burr price? Well, yes and no. Hi speed steel burs, or carbide burs, can be resharpened for considerably= less than the cost of new burs. They get slightly smaller in size in the = process, which may mean you need some new ones anyway, in some cases, but then may= also mean you end up with useful in between sizes with the resharpened ones. = .. =20 The less costly types, such as the Vanadium steel Busch burs, or similar = carbon steel burs, are usually not economically feasable to have resharpened, as= they cost about the same or even less, new, as they cost to regrind, in most = of the often used smaller sizes. Very large ones, well, maybe. Also, most of = these have a wonderfully uniform and exact original geometry and teeth, and the resharpened ones when they come back, having been hand sharpened usually,= are no longer as exact as they were when new. Also, the resharpened burs = generally come back with a considerably coarser tooth size than what's done = originally, also making them less useful as resharpened burs. In a pinch, you can often resharpen some burs yourself too, using a fine seperating disk or adalox moores disk or the like, to touch up the = cutting edges of a bur. Works best with larger sized burs with a coarse tooth = structure, such as many of the larger high speed steel burs. The services that do it for= you generally use a fine grit diamond wheel. Sometimes it's done "freehand",= other times it's with a cutting jig similar to what would have been originally = used on the new bur. Depends on the bur shape and size, and the individual = sharpening services. And sometimes, some of the carbon steel burs, especially those with = larger teeth, and if only slightly dull, can be given a sort of partially = effective sharpening with just an acid etch, in the same way as some people = occasionally try to sharpen a file. As with files, the resulting teeth are not as = strong as those on a newly cut file or bur, so it dulls again quickly, but it costs= little to try, should you be inclinded to do so. If you want to simply have them resharpened, most of the major tools = dealers who sell the burs, can also arrange for resharpening service on your burs. = I'm not aware of any one such service that's any better than any other, but there= may be such... Peter Rowe. =20 |
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