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Old 11-12-2017, 11:35 AM   #1 (permalink)
 
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Default sharping carbide bits

What is the best process to sharpen carbide wood turning bits?
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Old 11-12-2017, 11:44 AM   #2 (permalink)
 
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I have seen that some people lay the bit face down on a diamond cutting card and simply move it back and forth. Donít know if it works


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Old 11-12-2017, 01:15 PM   #3 (permalink)
 
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I have done this and it makes them better, but nothing like new.
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Old 11-12-2017, 01:33 PM   #4 (permalink)
 
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I've used the method mentioned but move the cutter in a figure 8. It improves the cutting edge but I agree it is not as good as new.
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Old 11-12-2017, 01:39 PM   #5 (permalink)
 
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Craft Supplies put out a short video a while back:
https://youtu.be/kUOuAPimjP4
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Old 11-12-2017, 01:54 PM   #6 (permalink)
 
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I have a set of the small diamond cards. I use the fine, then the ultra-fine. Moisten with water, then face down, I go around in a big circle 50 times, then in the other direction 50 times. Then I go back and forth 50 times and back and forth the other way 50 times. Then I move to the ultra fine and repeat. Takes less than 10 minutes.

I agree the edge is not quite as good as new, but it certainly more than serviceable. I can usually get four or five blanks per edge on my R2 cutter before sharpening again. More if turning wood, less if turning finicky blanks like Acrylester. I've probably turned at least 100 pens on the cutter I'm using now.
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Old 11-12-2017, 08:12 PM   #7 (permalink)
 
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I've used a diamond card lubricated with WD-40 - thanks to YouTuber Gord Rock for the idea. While nothing like new, it did breathe new life into them and I'm sure they'll last awhile before I need to buy new ones.
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Old 11-13-2017, 02:32 PM   #8 (permalink)
 
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I’ve used the diamond card along with cutting fluid to sharpen my carbide tools with mixed results. What I’ve found works best is just buy new inserts. I know this can be pricey but I’ve found AZ Carbides has some pretty good prices and ship quickly.

The other thing I’ve noticed are the inserts I get from AZ Carbides seem to be a little sharper than others purchased. May or may not be true, it just seems like it to me.

That’s azcarbide.com
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Old 11-13-2017, 04:15 PM   #9 (permalink)
 
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Quote:
Originally Posted by Imaginethat View Post
Iíve used the diamond card along with cutting fluid to sharpen my carbide tools with mixed results. What Iíve found works best is just buy new inserts. I know this can be pricey but Iíve found AZ Carbides has some pretty good prices and ship quickly.

The other thing Iíve noticed are the inserts I get from AZ Carbides seem to be a little sharper than others purchased. May or may not be true, it just seems like it to me.

Thatís azcarbide.com
Wow! Those are expensive. I get mine from Global Tooling and Supply at about half that of AZ Carbide.
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Old 11-13-2017, 10:01 PM   #10 (permalink)
 
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I'll agree with above, you can sharpen with diamonds but getting new inserts is better. If you went with the EWT tools there are definitely a lot of sellers who have inserts that fit their tools for cheaper.
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