Pennsylvania Firearm Owners Association
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  1. #11
    Join Date
    May 2011
    Location
    Southampton, Pennsylvania
    (Bucks County)
    Posts
    577
    Rep Power
    21474849

    Default Re: Need help with muzzle brake

    what GW says and run you bit slow, keep it wet like he says, but it would use a smaller bit to start... simply because the web ob the bit will be your problem.. the small the web the easier the drill..

    The web of a bit is the very center of the bit..





    do you see the difference?if you have a bit like the 2nd pic then go to size.. slow and wet. and you'll get it
    Just run slow, keep wet and i would start with a bit half the size strictly for the smaller web
    Last edited by 51158; March 13th, 2016 at 02:17 PM.
    If You Need A Color In The Name Of Your Cause, You're The "RACIST" !

  2. #12
    Join Date
    Apr 2009
    Location
    Quakertown, Pennsylvania
    (Bucks County)
    Posts
    5,878
    Rep Power
    21474856

    Default Re: Need help with muzzle brake

    I always start out small then gradually increase the bit diameter. Use a center punch to start, and try to keep your bore hole centered. Go slow and keep the bits lubricated to avoid burning them out.

    I've drilled out out broken 3/4" cyl head bolts with a hand drill without boogering the threads in the block. I've had lots of practice drilling out things over the years.

  3. #13
    Join Date
    Feb 2007
    Location
    next to my neighbor, Pennsylvania
    Posts
    13,585
    Rep Power
    21474867

    Default Re: Need help with muzzle brake

    Thanks guys. Looks like I need to get some GOOD carbide bits tomorrow,
    the home dumpster bits I bought today wont even scratch it.

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