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Thread: Bridge holes need to be drilled wider

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  1. #1
    Overlord of Music Dedman's Avatar
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    Personally I think the small holes will serve to centre and align the larger drill bit. I had to do this on my Jnr as the bridge I used had larger posts than were already drilled.
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  2. #2
    GAStronomist FrankenWashie's Avatar
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    Quote Originally Posted by Dedman View Post
    Personally I think the small holes will serve to centre and align the larger drill bit. I had to do this on my Jnr as the bridge I used had larger posts than were already drilled.
    Yeah, Im not sure it that is going to work with the Brad Point though, the centering for it comes from the spike in the centre of the bit, if you've a smaller hole then that spike is hitting nothing and the edges of the flute are the first thing that will make contact. (At least thats how it appears on the ones I have).
    Click image for larger version. 

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    If you're using a standard drill bit then what you say is probably true, but I'd imagine that the possibility of tearing out increases if all your torque at start up is on the flutes.
    I guess the best solution is to run a couple of test holes on stock and see what happens. I've not had great success with drilling out like that, but i suppose you are only talking 1/32" a side.
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