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Thread: Removing broken allen heads

  1. #1
    Senior Member droppixel's Avatar
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    Default Removing broken allen heads

    So, had an allen tool head break off in one of my module screws tonight ... anyone have any tricks they might use to get it out? I've tried to drill the head to thread a screw into and hope to pull it out that way, no luck - can't get a bite with the drill bit to do that.

    What I'm thinking I might have to do is go from the back side and do the same, hoping I can get a hole started in the screw itself and thread a screw there and hope to be able to back it out of the module ...

    Thoughts/Advice?
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    String builder/ Super Moderator Hutch~n~Son Archery's Avatar
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    That is a tough one. If you do drill from the bottom of the screw. It will relieve the pressure on the threaded section. It might not always but might unscrew as you are drilling.

    Wish you well!






    Hutch
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  3. #3
    Senior Member droppixel's Avatar
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    Probably what I'm gonna end up doing, gonna need to find a replacement bolt for the module
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    if you can use the very smallest drill bit in your kit to start a pilot hole and progressively work up to about 1/8" or 9/64"pilot hole (just stay smaller than what the allen tool diameter is ) i'd think you could bore the majority of the allen head wrench out of the module screw. drill in it and let the bit bite ( drill bits have some grip) and get stuck into the broken tool metal, release the bit from the chuck then pull n wiggle the bit outwards, maybe the broken metal will come with it . of course to start its best to have some type of a center punch mark, maybe make the mark with a drwall or 4p nail or tiny punch. cheap allen wrenches (probably one of the most ineffective 21st century tools we have that is still widely used) hurt lots of screw heads.

  5. #5
    String builder/ Super Moderator Hutch~n~Son Archery's Avatar
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    Quote Originally Posted by droppixel View Post
    Probably what I'm gonna end up doing, gonna need to find a replacement bolt for the module
    Module Screw Size: Flat head socket head 8/32 x 3/8" sold at most old fashion hardware stores. What size mod do you need?





    Hutch
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  6. #6
    String builder/ Super Moderator Hutch~n~Son Archery's Avatar
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    Oh btw Dp, buy yourself a good bit driver. My bit driver has hardened tips non flexible. That way they won't snap.




    Hutch
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  7. #7
    Senior Member droppixel's Avatar
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    Quote Originally Posted by Hutch~n~Son Archery View Post
    Oh btw Dp, buy yourself a good bit driver. My bit driver has hardened tips non flexible. That way they won't snap.




    Hutch
    Was a new tool I just got. I have a few other sets that I normally use - but this was a nice compact piece that I wanted to keep with me in my hunting pack. Oh well. Don't know that I'll be able to get a hole started in the allen head ... it's a pretty tiny piece, but will keep at it. Need to hunt down the smallest bit I can get my hands on to start.

    It's the Bengal mod Bill.
    Last edited by droppixel; 10-03-2012 at 10:05 PM.
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    Was this a 'ball' allen wench and the end of it broke off inside the fastener (module screw), or -
    a regular straight allen wrench (or bit) broke off in the module screw?
    Either way, or just a stuck or striped mod screw, the best first step is to go get a good left handed drill bit.

  9. #9
    Senior Member droppixel's Avatar
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    Yep ... one of the ball versions. The hardened steel wasn't so hard after all. Did try to put the smallest bit I have onto it and got no where. Will check the hardware store for something smaller this weekend. Module should be good for the short term, just don't want to get stuck if for any reason it starts to loosen up and I'm stuck without being able to tighten it back up.
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  10. #10
    Senior Member gravedigger's Avatar
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    the head broke off in the mod screw,try a good shot of air and see if it will blow its self out.

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