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Re: Removing broken ball end 1/16 allen wrench from screw

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  • kyle
    Success! My friend got a pointed carbide burr and was able to cut enough of a slot in it head of the screw to get it out. He has replaced the socket head
    Message 1 of 12 , Mar 5, 2012
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      Success!

      My friend got a pointed carbide burr and was able to cut enough of a slot in it head of the screw to get it out. He has replaced the socket head screws with phillips head screws.

      Kyle

      --- In GrizHFMinimill@yahoogroups.com, "kyle" <kylejoiner@...> wrote:
      >
      > Hello,
      >
      > I found a pointed carbide engraving bit that Dremel makes and suggested he try carefully cutting something that resembles a screwdriver slot into the head of the screw. If he can do that, he might be able to back the screw out. He will need to tape over the main lens and also the one the LED is behind.
      >
      > Kyle
      >
      > --- In GrizHFMinimill@yahoogroups.com, michael kolchins <kwoodhands@> wrote:
      > >
      > > How about a magnet.
      > > mike
      > >
      > >
      > >
      > > >________________________________
      > > > From: radiomaninca <kevin_lemon@>
      > > >To: GrizHFMinimill@yahoogroups.com
      > > >Sent: Wednesday, February 29, 2012 9:33 AM
      > > >Subject: [GrizHFMinimill] Re: Removing broken ball end 1/16 allen wrench from screw
      > > >
      > > >
      > > > 
      > > >I agree with the idea of using a center punch, you can make one out of a small drill, or stiff wire. use it to gently tap the ball until it loosens in the bolt head and then invert the scope and gently shake or tap the bolt head until the ball comes out.
      > > >Once the ball is loose you might try magnetizing the flat end of the drill and pulling it out with that.
      > > >
      > > >I used this method many times as a machine repair tradesman.
      > > >
      > > >Kevin
      > > >
      > > >--- In GrizHFMinimill@yahoogroups.com, Hartley Falbaum <hfalbaum@> wrote:
      > > >>
      > > >> Might consider this trick.
      > > >>
      > > >> Very sharp center punch
      > > >> Tap lightly at an angle backwards (counterclockwise) to uncock the ball head, as it is likely just "jammed" slightly.
      > > >>
      > > >> I have done this to remove badly "buggered" screws before.
      > > >>
      > > >> On Feb 28, 2012, at 1:41 PM, kyle wrote:
      > > >>
      > > >> > Hi Guys,
      > > >> >
      > > >> > I'm not sure if the ball end would want to wobble around so drilling might not work. My friend was able to remove the other screw and it appears to be pretty hard judging by running a file over the head - it barely leaves a mark.
      > > >> >
      > > >> > If I could get a MIG whisker to stick to the ball end it could probably be pulled out, but the numerous risks are too great: electocuting the circuitry in the sight, burning the sight, getting spatter on the lens, etc... Plus the chance of me getting the wire right on the broken piece would be quite a trick.
      > > >> >
      > > >> >
      > > >> > Kyle
      > > >> >
      > > >> > --- In GrizHFMinimill@yahoogroups.com, "Rob Potter" <rob@> wrote:
      > > >> >>
      > > >> >> While drilling isn't a bad idea, the broken off ball end might not be wedged
      > > >> >> firmly enough in place to make that possible. It seems to me that you have
      > > >> >> nothing to lose by trying the epoxy approach. If it doesn't work, it won't
      > > >> >> have done anything to preclude trying to drill it and use an easy-out. Of
      > > >> >> course the absolutely guaranteed no-harm-done approach would be to send it
      > > >> >> to Burris. The First Fire's look to be worth $200-$250, so a little
      > > >> >> shipping expense plus the cost of repair might be worth it.
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >> Rob Potter
      > > >> >>
      > > >> >> Portland, OR
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >> From: GrizHFMinimill@yahoogroups.com [mailto:GrizHFMinimill@yahoogroups.com]
      > > >> >> On Behalf Of David Wiseman
      > > >> >> Sent: Tuesday, February 28, 2012 5:20 AM
      > > >> >> To: GrizHFMinimill@yahoogroups.com
      > > >> >> Subject: Re: [GrizHFMinimill] Removing broken ball end 1/16 allen wrench
      > > >> >> from screw
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >> A solid carbide drill a possibility? I have them for drilling circuit boards
      > > >> >> and they go down to about 0.3mm dia. Need to be very careful. Solid mounting
      > > >> >> of the part and drill as they are very fragile.
      > > >> >>
      > > >> >>
      > > >> >> Kind regards,
      > > >> >>
      > > >> >> David Wiseman
      > > >> >>
      > > >> >> Sent from my BlackBerry mobile phone
      > > >> >>
      > > >> >> _____
      > > >> >>
      > > >> >> From: "kyle" <kylejoiner@>
      > > >> >>
      > > >> >> Sender: GrizHFMinimill@yahoogroups.com
      > > >> >>
      > > >> >> Date: Tue, 28 Feb 2012 13:15:20 -0000
      > > >> >>
      > > >> >> To: <GrizHFMinimill@yahoogroups.com>
      > > >> >>
      > > >> >> ReplyTo: GrizHFMinimill@yahoogroups.com
      > > >> >>
      > > >> >> Subject: [GrizHFMinimill] Removing broken ball end 1/16 allen wrench from
      > > >> >> screw
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >>
      > > >> >> Hello,
      > > >> >>
      > > >> >> A friend at work has a Burris Fast Fire red dot sight. The upper half of the
      > > >> >> sight uses #4 flat head socket head screws. This size uses a 1/16" allen
      > > >> >> wrench. He was loosening one of them with a ball end allen wrench which was
      > > >> >> apprently defective and snapped it off in the socket of the screw. He
      > > >> >> emailed me last night and my first thought was to simply use a Dremel tool
      > > >> >> and cut a notch in the head of the screw and remove it. Upon looking at it
      > > >> >> this morning, I don't see a way to get a Dremel in there without destroying
      > > >> >> other parts of the sight - it's a pretty small sight. Does anyone have any
      > > >> >> tricks to get the ball end out? He's tried magnets. I'm thinking of trying
      > > >> >> to carefully epoxy something to the ball end and trying to pull it out. The
      > > >> >> tough part is that the screw and ball end are probably pretty hard. I think
      > > >> >> the screw has some Loctite on it from the factory. You have to remove the
      > > >> >> screws to get to the battery compartment.
      > > >> >>
      > > >> >> Thanks,
      > > >> >>
      > > >> >> Kyle
      > > >> >>
      > > >> >
      > > >> >
      > > >> >
      > > >> >
      > > >> > ------------------------------------
      > > >> >
      > > >> > Yahoo! Groups Links
      > > >> >
      > > >> >
      > > >> >
      > > >>
      > > >> Hartley Falbaum
      > > >> hfalbaum@
      > > >>
      > > >
      > > >
      > > >
      > > >
      > > >
      > >
      >
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