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Drilling in hole in cast iron kitchen sink

Plumb
Plumb Member Posts: 6
in THE MAIN WALL
need some advice on drilling a hole in a cast iron kitchen sink.

Comments

  • Rich daplumber
    Rich daplumber Member Posts: 14
    easy drill

    #1 start off with carbide tip 1/4" driil, driil through finish to cast iron.
    #2 use 1/4" high speed driil go through cast iron.
    #3 get cabide tiped hole saw ( size you want hole ) start drill using pilot hole made allready.
    slow and steady.
    allways works for me....
  • hr
    hr Member Posts: 6,106
    Rich da man

    is right on. It's a two step process with two different drills. The carbide cuts cleanly through the glaze, then any good holesaw takes it from there. Cast iron is fairly soft and easy to cut.

    Watch your drill speed to prevent burning. Safety glasses, and brace youself and drill to prevent an embarassing snag and launch. Or worse a skid mark across the top of the sink :) I've been down both of those roads!

    Most good tool supply shops have the combo.

    hot rod

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  • Nick Z._2
    Nick Z._2 Member Posts: 32
    Diamond hole saw

    If it something your going to do on a regular basis, I would invest in a diamond hole saw. I bought a 11/4" for about $80 and was worth every penny.
  • Mark Eatherton1
    Mark Eatherton1 Member Posts: 2,542
    The EASY way...

    I don't know where you're at, but in Denver, Water Systems, Inc will drill the extra hole for you (for a minimal charge) If they screw it up, THEY eat it, not you...

    ME

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  • Weezbo
    Weezbo Member Posts: 6,232
    the easy way...

    Just Say No! :)
  • Plumb
    Plumb Member Posts: 6
    Diamond hole saw

    I did buy a diamond hole saw, the cost was $48.00
    If you need any Drilling or demolition equipment this place is great.
    U.S. Diamond
    1-800-582-1429
    24-32 44th Street
    Long Island City,N.Y. 11103
  • Plumb
    Plumb Member Posts: 6
    Thank You All

  • jim lockard
    jim lockard Member Posts: 1,059
    My little trick

    I place a disposable coffee cup over the hole saw to catch all the metal shavings. J.Lockard
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