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Centre punch

Discussion in 'Anything Airgun Related' started by Meteor62, Feb 25, 2014.

  1. Meteor62

    Meteor62 Major Poster

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    In need of a centre punch to knock out pins out of guns can anyone recommend any on eBay ? What about these automatic ones are they up to the job?
     
  2. Ashgill

    Ashgill Well-Known Member

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    you don't want a centre punch to know out pins mate, you want a pin punch. can normally get a set of like 10 different sizes
     
  3. Jackroadkill

    Jackroadkill Donator

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    Not taking the mick, but do you not need a pin punch? A centre punch is used for marking out where a drill will locate.

    That said, if it really is a centre punch you're after, then the automatic ones are okay on softer steels.
     
  4. Ashgill

    Ashgill Well-Known Member

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    I don't know what quality you are after but you can get some cheap silverline ones on amazon that should suffice.
     
  5. mattyts

    mattyts Donator

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    Center punches are intended to put dents in what you hit them with,that's their purpose,wouldn't use them for an air gun.

    Just get a steel rod or grind a piece of threaded bar round.
     
  6. Ashgill

    Ashgill Well-Known Member

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  7. Meteor62

    Meteor62 Major Poster

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    Ah ok it's for knocking out pins like you find in most guns HW trigger block, meteor breech pins and at the moment there is a roll pin if that makes sense I need to knock out to dismantle the underlever from the trigger block, it's hollow if someone has experience of this and can recommend please advise.
     
  8. mattyts

    mattyts Donator

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    A normal pin set from Ebay or a place like Axminster will do fine,usually well under a tenner.
     
  9. Jackroadkill

    Jackroadkill Donator

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    Yes, that's the sort of thing I use. If you're in a pinch you can grind the point off a nail and use that, but a pin punch set is not dear.
     
  10. mattyts

    mattyts Donator

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    I have some lengths of silver steel,cut them up and ground a little bevel on them,works fine.

    If you have access to a lathe,turn some with a bit of a step up for a handle/something to hit,could knurl them too.
     
  11. terry1001

    terry1001 Major Poster

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    You need parallel pin punches and good quality ones are the ones to get, cheap ones can bend or shatter. For roll pins you need a different style which has a little 'bump' in the centre to stop the pin collapsing in towards the centre. You do need to use exactly the right size, too large and they will jam or mark the work and too small and they can get stuck in the centre of the roll pin. Use a light hammer to drive them out, pins are fitted and removed from the same side.
     
  12. Meteor62

    Meteor62 Major Poster

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  13. mattyts

    mattyts Donator

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    For the usual pins they will do fine but not for roll pins,you need the ones with a little convex on the end.
     
  14. Meteor62

    Meteor62 Major Poster

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    So would you say the ones that ash gill has recommended ?
     
  15. jolo-bolo

    jolo-bolo Donator

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    Aldi did some a while back and our local one has some left try yours.
     
  16. mattyts

    mattyts Donator

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  17. kev...

    kev... Engaging Member

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    Dont buy the silverline ones they are like cheese your better off grinding the end down on a old rusty nail honestly!!! (No offence Ash Gill)

    Get a decent set they make the job so much easier.
     
  18. terry1001

    terry1001 Major Poster

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    cheap punches are like cheap allen keys, there's a 1% chance they will be ok and 99% chance that they will ruin your work. Good screwdrivers are another must have tool as soft steel and poor fitting tips will butcher the screw heads and probably slip off and cause damage.
     
  19. leecraw66

    leecraw66 Donator

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    SOFTLY SOFTLY catchey monkey. Used a centre punch to do something on my HW, made of very hard stuff centre punches, does make a mess if you slip.
    Recently depinned an old relum tornado with galnanised clout nails (softish metal ) not a scratch. If it didnt push one way, I turned the rifle over, if it bent I got another. You have to cut the point off with pliers before you begin.
     
  20. oliver13

    oliver13 Donator

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    This is pretty much what I've been using for years, for pins & roll pins, I know it's not absolutely correct but in reality it works fine.
     

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