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  1. #1
    Join Date
    May 2010
    Location
    large triangle
    Posts
    278

    3/8" diameter heli-coil?

    I just f'd up...travelling and didn't have all of my tools. I was trying to countersink the 3.6mm holes with a 3/8" drill bit on the top sheet and one caught as I was going too quickly and drilled probably a quarter of the way through the ski.

    If it was a 5/16" bit, I'd just throw an insert in...

    Are there helicoils for a 3/8" hole? other options?

    I'd rather not move the bindings, as I like where they're mounted and everything is drilled.

    Ideas?

  2. #2
    Join Date
    Nov 2007
    Location
    Eburg
    Posts
    13,243
    Oh fuck

    Next time, countersink by twisting the big drill bit with your hand.

    Maybe one of the pound-inserts is 3/8" or bigger?

    T-nut = last resort
    Last edited by Big Steve; 02-03-2012 at 07:27 PM.

  3. #3
    Join Date
    Dec 2007
    Location
    Hell Track
    Posts
    13,841
    t-nut up from the bottom?

    Or clean up the mis-drilled hole as best as possible, cut a wood dowel to fit snugly in the hole and epoxy it in. Redrill, hope for the best.

  4. #4
    Join Date
    Jan 2008
    Location
    BC to CO
    Posts
    4,864
    3/8 wood dowel epoxyed in. Drill your new hole into the dowel. Easy fix.

  5. #5
    Join Date
    May 2002
    Posts
    33,440
    You can get helicoils for any size thread. Just put one in our steigerizer for a 9/16 thread. Call a metal/machine shop near where you are and ask them where you might get one. You might have to cut it for the depth but it can be done and you might end up asking that shop to cut it for you.

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