snapped screw extractor in bolt

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  #1  
Old 11-28-10, 05:48 PM
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snapped screw extractor in bolt

I am trying to remove a 6mm flat head screw with a stripped phillips head. I drilled a hole into the head of the screw and used a #3 Black and Decker screw extractor. Unfortunately, the screw extractor snapped off. I ground what was left of the extractor it flat with a dremel, and have tried to drill it out, without out success [it is obviously very hard]. Does anyone have suggestions on how to drill out the B&D screw extractor or the 6mm screw?
 
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Old 11-28-10, 07:19 PM
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use your dremel to grind a slot for a regular screwdriver.
 
  #3  
Old 11-28-10, 08:24 PM
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The average drill bit wont touch something like this, I have had some luck with solid carbide bits but they break easy and are expensive. Now you know why I say the guy that invented these things should be castrated.
 
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Old 11-29-10, 03:56 AM
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If the bolt head is exposed, and even if you have boogered it up, there are external extractors that you use like sockets that will remove it. I have a set, and NOBODY touches them. They are invaluable for when you need to remove a stubborn bolt. All the pressure is on the outside of the bolt head and not in the center as was your extractor.
 
  #5  
Old 11-29-10, 04:35 AM
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I have bought cobalt drill bits to drill out broken extractors.
They are harder than the extractor, but not quite as bad as carbide for fracturing.
 
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