Sharpening small carbide bits

helterskelter · Mar 29, 2013

Does anyone know how to sharpen small carbide bits? I use #50 (.070'' diameter) bits in a handheld application (has to be carbide, material too hard, nothing else cuts) and get a fair number of holes out of a single drill. But every so often I have a bad day and chip drill bits out left and right. I hate to toss these bits. Is there any repeatable method to put a point back on them? I tried by hand and just make them worse. :willy_nil

5mall5nail5 · Mar 29, 2013

0.070" is quite small, but you might be able to sharpen on this:

http://garagejournal.com/forum/showthread.php?t=194323

If you have a broken one I could try and sharpen it on the tool and mail it back to you

Hafen_Kafer · Mar 30, 2013

You have to send them out. You will eat the diamond wheel of the Drill Doctor in no time.

A_Pmech · Mar 30, 2013

You'll need a micro drill pointer to sharpen those.

Something like a Meteor MM-10

vintagefan · Mar 30, 2013

There are companies that specialize in resharpening for the circuit board industry, I'd look into that.

In fact, some of them perform an "exchange program", you can buy little flats of carbide drills in a specific size, and then send them back once dull and get a new flat.

EDGAR · Mar 30, 2013

Check this link. They sell new bits as well as packs of resharpened micro drill bits.

http://drillcity.stores.yahoo.net/5pacresdrilb.html

Sharpening small carbide bits

helterskelter

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5mall5nail5

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Hafen_Kafer

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A_Pmech

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vintagefan

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EDGAR

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