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RE: Screw Extractor

To: Mike Razor <>,
Subject: RE: Screw Extractor
From: Larry Hoy <>
Date: Wed, 09 Jun 1999 14:13:19 -0600
Well we all now know the out come of Mikes dilemma.  Most of us have been in
a similar situation.

The last time I broke an extractor in a bolt this is what I did.  A little
micro surgery.  I fired up my trusty Gibbonizer (that's a Dremel Moto Tool
or its equivalent).  I used a very small diamond bit, I get these from my
dentist friend.  Then I just removed bolt material around the broken
extractor.  Eventually the extractor came out.  Once the extractor was out,
the bolt was virtually hollow, I "crushed" the bolt and used needle nose
pliers to remove it.

As a result of this experience, I now drill broken bolts with the largest
drill I can, without messing up the threads.  This works best if the item
can be placed in a drill press and the hole must be centered.

Larry Hoy, Denver, CO USA
1970 MGB Daily Driver ~ 1967 MGB Vintage Racer ~ 1969 MGB Undergoing V8

> -----Original Message-----
> From: []On
> Behalf Of Mike Razor
> Sent: Tuesday, June 08, 1999 6:36 PM
> To:
> Subject: Screw Extractor
> Who can tell me how these things work.  I have a bleeder valve
> sheared off flush with the side of the caliper.  There is a
> hole in the middle that the #2 extractor fits in.  There is a
> picture of a drill on the box set of extractors.
> 1. Which way do I turn the drill (forward) (backward)
> 2. How much pressure
> 3. Am I suppose to chew the screw out or bite into it and back
> it out

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