How do I drill a porcelain sink?

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  • This topic has 1 reply, 2 voices, and was last updated 24 years ago by Avatar photodaveroconn.
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    • #273105
      Avatar photoMasterPlumbers

        I need to make a fourth hole in a porcelain enamelled cast iron sink. Can this be done without cracking the porcelain?

      • #286899
        Avatar photodaveroconn

          Yes this can be done with a Relton carbide tipped hole saw it is a two piece cutter that first cuts a beveled hole to relieve the porcelain. Then a slightly smaller cutter bores a hole through the cast iron. You can order one of these from my web site at go to online order page. The part number is PC-20 price is $111.25 US

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