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Cutting metal embedded in concrete

Discussion in 'General DIY' started by Niscars, 7 Nov 2018.

  1. Niscars

    Niscars

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    [​IMG]
    Can someone please give me some advice on a suitable tool for cutting a square end on the sliding garage door channel pictured above. As you can see, the track is encased in concrete and has rotted away on the curve of the door.
    I am planning to construct a new section for the curve which will butt up to the original one pictured. In order to butt the two together neatly so the door runs freely in the channel, I need to cut back and square the end on the old one. For scale, the width of the concrete channel is 35mm
    I thought, perhaps drilling a line of holes across the metal and then chopping it out with a cold chisel?
    Or slicing across the metal and concrete with a disc cutter? Can I get a small blade that will cut both together?
    Any better ideas please?
    Thanks
     
  2. Burnerman

    Burnerman

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    These channels are often hard as hell....if its acceptable to you, I'd use an angle grinder with a stone cutting disc - it will go through steel too. A 115mm disc should be fine.
    John :)
     
  3. jj4091

    jj4091

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    A diamond blade in a grinder will also go through both materials.
     
  4. Niscars

    Niscars

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    Thanks for your replies guys. I think the angle grinder option is a good one as I will have to repair the concrete around the track anyway.
    I have some other questions about my plan for the repair, so I may start a new thread on that.
    Ta.
     
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