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Discuss PVC back boxes ................... in the Electrical Tools and Products area at ElectrciansForums.co.uk.

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  1. Murdoch
    Online

    Murdoch Electrician's Arms

    Location:
    Woking
    OK.

    Ideally I need some 2G white surface boxes in PVC with 20mm knockouts on both sides .......

    Centaur do some with a 20mm knock out on 1 side
    Other manufacturers seem to do them on the top and / or bottom

    Any suggestions chaps & chapesses

    Thanks
     
  2. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    I usually use a stepping drill for holes on PVC boxes in places where the knock is not.
     
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  3. ImpededLoop
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    ImpededLoop Electrician's Arms

    Location:
    West Sussex
    Hole saw?
     
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  4. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    upload_2017-12-6_17-36-32.jpeg
     
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  5. mattg4321
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    mattg4321 Electrician's Arms

    Location:
    South East
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  6. NDG Elecs
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    NDG Elecs Electrician's Arms

    Location:
    Tyne and Wear
    Yeah I would go with a nice sharp 20mm holesaw too :)
     
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  7. NDG Elecs
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    NDG Elecs Electrician's Arms

    Location:
    Tyne and Wear
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  8. HandySparks
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    HandySparks Trusted Advisor

    Location:
    Hampshire
    Business Name:
    Neish Electrical Services
    Totally agree. A step drill will make a nice neat 20mm hole without any drama.
     
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  9. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Hole saw is pretty poor for pvc boxes, it snatches and tends to melt the pvc leaving a hole that needs reaming, stepping drill is perfect. Leaves a lovely chamfer around the hole as well.
     
  10. Murdoch
    Online

    Murdoch Electrician's Arms

    Location:
    Woking
    Ignoring the obvious damage and the cable "run", why put a socket above a door?
     
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  11. ipf
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    ipf Trusted Advisor

    For the kettle....when he's put the shelf up...
     
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  12. NDG Elecs
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    NDG Elecs Electrician's Arms

    Location:
    Tyne and Wear
    It was in a commercial property. I rewired the place for the landlord, then the tenant got the keys and got their own person in to butcher the place! The landlord caught the idiot hammering holes in the fire and acoustic double boarded ceiling and kicked them out! The amount of carp I had to rectify was fun..
     
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  13. NDG Elecs
    Offline

    NDG Elecs Electrician's Arms

    Location:
    Tyne and Wear
    Oh, and I don't know what purpose that particular socket serves! But I do know the cable is now not diagonal!
     
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  14. NDG Elecs
    Offline

    NDG Elecs Electrician's Arms

    Location:
    Tyne and Wear
    Don't use conduit boxes often TBH. I found a holesaw was ok - different plastic perhaps. Some of the holes needed a little trim of the swarf (if that's the right term) with a Stanley, but overall I found it ok.

    Cone/step drill I will try next time though.
     
  15. Ian1981
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    Ian1981 Electrician's Arms

    Location:
    North east
    Step drill??
    Be kind I’ve led a sheltered life:)
     
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  16. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    a cone cutter, but stepped at various diameters.
    [​IMG]
     
  17. Ian1981
    Offline

    Ian1981 Electrician's Arms

    Location:
    North east
    Oh right yeah I’ve a cone cutter.
    I use it to make say 20mm holes a bit larger say to 25mm etc

    Step drill! God you oldies crack me up:D
     
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  18. Risteard
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    Risteard Electrician's Arms

    Location:
    Derry, Ireland
    Business Name:
    Walsh Electrical Services
    I have cone cutters and step also. If I want a 20mm hole though I'd use a 20mm holesaw - don't see the point of stepping up to 20mm.
     
  19. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    saves having to clean the partly melted plastic out of your hole saw.
     
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  20. Pete999
    Online

    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    Business Name:
    None
    What's wrong with calling it a step drill? a cone cutter is different from a stepped hole cutter / drill whatever.
     
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