Broke a drill bit in concrete. Any way to get it out?


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Old 08-05-21, 05:55 PM
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Broke a drill bit in concrete. Any way to get it out?

I tried with a stack of neodymium magnets to no avail. Any tips/tricks?

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And for that matter, what's the trick to drilling in concrete? I just have pressed top hard obviously but it was going nowhere slowly. Well, somewhere. Patience only? I tried going at it with slow rpms but gave up and full throttled it.
 
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Old 08-05-21, 05:58 PM
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I see a hole..... no bit.

If the bit is sticking out..... use Vise Grips to remove it.
If it breaks off evenly with the surface.... abandon it and move the hole slightly.

Using a sharp bit helps a lot.
 
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Old 08-05-21, 06:04 PM
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Yeah gonna have to find a new spot meaning gonna have to remove spout and cut pipe. Slight pain. Just checking if there was a trick I didn't know of.

How to sharpen a bit? Dremel it? Just re-form a cone tip?
 
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Old 08-05-21, 06:07 PM
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Were you using a regular drill? Then the "trick" is to use a more appropriate tool, such as a hammer drill or rotary hammer.
 
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Old 08-05-21, 06:36 PM
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Thank you!

https://youtu.be/d6amOra1qZg

This schooled me on the concept and how 8 can even try using my hammer function on my regular drill. But 8 also have an impact driver with adapter for bits if thst might work too.

I've actually decided not to drill since it's only temporary til I decide to climb in my attic to fix my plumbing. Just getting water in my house so I don't have to carry gallons from outside.
 
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Old 08-05-21, 07:11 PM
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Where it looks like a hole.... did the bit snap off there ?
The broken piece may have fallen into a hollow block.

It looks like cinder block in your picture. That should drill pretty easily even without a hammer drill.
You do need to use masonry bits for block or cement. A masonry bit will have a special end to drill masonry.
 
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Old 08-06-21, 04:35 AM
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Use a masonry bit with a hammer drill. An impact driver will not help.
 
 

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