Copper pipe to sell to use as a cutting instrument?

  1. Curiousgeorge Member

    Messages:
    265
    Location:
    Wales
    I’m after some copper pipe to use to act as a knife to cut plastic wrapping off sheets of steel.
    Also, is the pipe with a squeezed end the best way to do this?
     
  2. Parm

    Parm Oh how I’ve missed my play pen this year

    Messages:
    12,093
    Location:
    Towcester
    It might just be me but I don’t get this?

    Are you looking for a copper bladed knife? If so let me know when you find one

    Or do you want a copper pipe handle on an existing blade? This I’ve seen before on a big hacksaw blade
     
  3. Curiousgeorge Member

    Messages:
    265
    Location:
    Wales
    Sorry, I mean there is some plastic wrapping on some stainless steel sheets and using copper to cut the sheet is perfect because it’s sharp enough to cut the plastic but not hard enough to mark the steel. I just need more!
     
  4. Paul.

    Paul. Moderator Staff Member

    Messages:
    6,523
    Location:
    Northampton. UK
    Flattened copper pipe is fine, just file an edge on it and don't press too hard, there is a bit of a knack to it to avoid scratching the sheet, I also use a hard plastic knife edge made from plastic curtain rail, needs sharpening more often than copper but is much safer for the finish on bright annealed or mirror polished than copper,
     
  5. Parm

    Parm Oh how I’ve missed my play pen this year

    Messages:
    12,093
    Location:
    Towcester
    You could try a good quality and stiff paint stirrer with an edge on it
     
    Curiousgeorge likes this.
  6. Screwdriver

    Screwdriver Member

    Messages:
    6,413
    UK London
    I use a blow torch, one of those little kitchen jobbies. It melts so quickly it won’t stick to the innards if it’s the right sort of wrapping.

    Your mileage may vary...
     
    Curiousgeorge likes this.
  7. bigegg

    bigegg I drink and I know things. Its what I do.

    Messages:
    7,523
    Location:
    Leeds, West Yorkshire
    fingernails?

    but i'd look at buying a plastic spudger/trim tool.
     
  8. bourbon Member

    Messages:
    738
    Location:
    Lichfield UK
    Box cutter?
     
  9. maz0

    maz0 Forum Supporter

    Messages:
    645
    Location:
    Central Scotland
    Safety box cutter or Film cutter, no need to faff about with copper.
     
    Maker likes this.
  10. Maker

    Maker nEw mEmBeR

    Messages:
    7,545
    Location:
    Don't ask questions
    That's what I was thinking, sometimes known as a "fish cutter" though other styles exist.
    fish_600_all.jpg
     
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  11. bricol Member

    Messages:
    1,195
    N.Yorks, UK
    Side of a 20p piece worked for me - cut through the laser film, didn't mark brushed or 2B finish stainless. Might not want to try it on mirror!
     
  12. DAPPH

    DAPPH as dyslexik as I'm daft

    Messages:
    2,661
    Location:
    Near to Cross Hands Llanelli SouthWales GB
    In pound land you can often get two plastic bag slicers that are a pointed plastic jaw cast round a sharp blade you can cut several thicknesses of shrink wrap with them ….. Ha Ha just seen Makers post . them's the beasts.


    Check out eBay 143299519642 and 333162114060 the last one is more of a commercial one .
     
    Last edited: Sep 17, 2019
    bigegg and Maker like this.
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