Enlarging internal door latch spindle hole

Discussion in 'Wood / Woodwork / Carpentry' started by JONXLR8, 15 May 2013.

  1. JONXLR8

    JONXLR8

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    This may be the simplest question ever but I just want to make sure I get it right.

    We had some handles on the (pine) door which we are replacing with new.

    The centre piece on the new handle sticks out from the back of the handle by about 2mm...


    ...so this needs to sit inside the hole already drilled in the door to enable the handle to sit flush against the door. Unfortunately the holes diameter (12-13mm) is about 2 or 3mm smaller than the piece that sticks out on the handle (15mm) so I need to enlarge the hole.


    Should I:

    1 - Enlarge the hole with a small round file
    2 - Use a hole saw
    3 - Drill through with a 15.5mm drill bit

    Bearing in mind I don't yet have a file, hole saw big enough or a large enough drill bit, what is my best option? Thanks
     
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  3. foxhole

    foxhole

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    You could enlarge by running a hss bit around the hole gently at high rpm, acts like a file.Need to keep it under control or you get a much larger hole.
     
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  4. JONXLR8

    JONXLR8

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    Thanks, well that's something I could do because I do have some drill bits that could do the job.

    The other thing I just thought of is, how about a 16mm countersink bit considering we're only talking 2mm?
     
  5. Burnerman

    Burnerman

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    Consider using a step drill - Toolstation 78333.
    John :)
     
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  6. gregers

    gregers

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    just carefully drill through(each half)with a bigger drill bit.
     
  7. gritmonkey

    gritmonkey

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    Unless you're going to use a stepped drill then anything else will rattle around the hole like nobody's business. You need something self centring.

    If you don't want the expense of a stepped drill then you could make a small jig to be used even by a flat bit.
     
  8. JohnD

    JohnD

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    a hole saw would do a neat job, but will need you to clamp a block of wood to the other side of the door that the pilot drill can run into, to hold the hole saw steady.

    If you have a large blacksmiths twist drill, at low speed, it will tend to centre itself in the hole.
     
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    DIYnot Local

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