Drilling above a window to fit a curtain rail – likely to be steel or concrete?

Discussion in 'Builders' Talk' started by Paul Coombs, Aug 7, 2023.

  1. Paul Coombs

    Paul Coombs Member

    The building is 1960s and I want to be armed with the correct type of drill bits. So I don’t blunt the wrong ones, I’d like opinions as to the likely type of lintel I 'll be up against.

    TIA
     
  2. BuildingMad

    BuildingMad Screwfix Select

    Likely to be prestressed concrete or insitu concrete. Catnics came out in 1969.
    SDS dill will have no problem, but will divert off line if you hit a reinforcement bar, or even give a jolt.
    SDS dill will punch through thin metal lintols such as Catnics eventually anyway, but you will notice the sound.
     
    Last edited: Aug 7, 2023
  3. Paul Coombs

    Paul Coombs Member

    Thanks for the reply. I have SDS ready together with Dewalt Extreme II SDS drills so hopefully should be OK!
     

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