Carbide tip touch up


Mark J

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I've heard one can touch up the replaceble carbide tips of turning tools on a 1000 grit diamond stone, prolonging the time between replacements..  

Does anyone here have any experience with or insite on this idea?

Corollary question.  How much "mileage" do you get out of your carbide tips.

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I use a small diamond stone that has 300 on one side and 1000 on the other. I use a little window cleaner for lubricant and work the tip just like gee-dub described. Just the 1000 side. Works great. I suppose it will reach a point where it will need to be replaced, but I haven't found it yet. How long before sharpening varies with the wood I am turning, but really, once I learned you can sharpen the little things I don't let them get very dull.

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36 minutes ago, Mark J said:

Thanks guys.  Follow on question.  Since carbide is harder any clue as to how much more time on the abrasive it takes as compared to say a chisel?

I use these for sharpening my carbide: http://www.rockler.com/diamond-hone-sharpening-set

I take about 10 gentle swipes on each grit and they are ready.

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How many circles or how long you spend on the stone depends, I suppose, on how often you run them over the stone. I found that the cutter only needs maybe 5 - 10 circles on a diamond stone to make them sharp again. It makes a huge difference in the cutting ability and gives a much better surface than when the edges are dulled.

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