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Thread: Fitting swivel studs

  1. #1
    Join Date
    May 2013
    Location
    Richmond
    Posts
    7

    Fitting swivel studs

    Hi, how do you select the correct size drill bit to drill the pilot holes when fitting swivel studs?

    many thank's in advance.

  2. #2
    Join Date
    Oct 2004
    Location
    Nuneaton, Warwickshire. Shakespeare's country.
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    5,905
    Quote Originally Posted by molsal View Post
    Hi, how do you select the correct size drill bit to drill the pilot holes when fitting swivel studs?

    many thank's in advance.
    Measure the screw root diameter:-

    http://s16.photobucket.com/user/UK_N...441e1.jpg.html


    Get a drill same size as root or very slightly larger:-


    http://s16.photobucket.com/user/UK_N...e8ed2.jpg.html



    Drill hole:-


    http://s16.photobucket.com/user/UK_N...528ad.jpg.html


    Neil
    Current airguns:-Webley Mk 3 Supertarget: Pro-Sport: HW77: FWB 700 Match: Steyr Hunter: Anschutz 8002: TX200HC: Steyr LP10:FWB 85: CP88 Competition: 1911 Dark Ops and various other C02 Plinkers.

  3. #3
    Join Date
    Sep 2010
    Location
    Exeter
    Posts
    11,118
    If you don't have a vernier just hold it up to the light & "eye it" you want a bit just a fraction thinner than the screw shank.

    Put masking tape on to mark the hole, it also helps stop the drill bit sliding on the wood.

  4. #4
    Join Date
    Mar 2011
    Location
    Sheffield
    Posts
    1,551
    I've always used a 4mm drill bit.

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