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A tool for making holes.I know what i want but what's it called?

Discussion in 'The Hokey Ass Message Board' started by gasolinescream, Jul 13, 2012.

  1. gasolinescream
    Joined: Sep 7, 2010
    Posts: 614

    gasolinescream
    Member

    Holes!! I've hole-sawed and cut holes in thin gauge metal but always liked that punched out look. I've seen tools that do the job, kind of 2 piece affair but haven't got a clue what they're called or where i could start looking for some. I'd love to track some down and have a play if they are not silly money.

    Any ideas please?

    Many thanks Dan:cool:
     
  2. Slick Willy
    Joined: Aug 3, 2008
    Posts: 3,012

    Slick Willy
    Member

  3. They are called Knock Out Punches
     
  4. Westco48
    Joined: Oct 21, 2010
    Posts: 199

    Westco48
    Member


  5. GEISTERFAHRER
    Joined: Apr 23, 2010
    Posts: 85

    GEISTERFAHRER
    Member

  6. Drill bit,ha,ha... Arbour press dies are the real deal...
     
  7. Westco48
    Joined: Oct 21, 2010
    Posts: 199

    Westco48
    Member

  8. Like I said, that is a Knock Out Punch - google it
     
  9. 49ratfink
    Joined: Feb 8, 2004
    Posts: 18,084

    49ratfink
    Member
    from California

    the good ones are made by Greenlee, easy to find in the plumbing dept at Home Depot.
     
  10. GEISTERFAHRER
    Joined: Apr 23, 2010
    Posts: 85

    GEISTERFAHRER
    Member

    Check my link but they are pricy!?!
     
  11. Knock out punches,,this is a image from HF,,they are cheap but if you want quality you are going to have to dig deep. HRP

    [​IMG]
     
  12. GEISTERFAHRER
    Joined: Apr 23, 2010
    Posts: 85

    GEISTERFAHRER
    Member

    Never mind you are in the UK!
     
  13. Like I said, that is a Knock Out Punch - google it
    [​IMG]
     
  14. rotorwrench
    Joined: Apr 21, 2006
    Posts: 633

    rotorwrench
    Member

    Roper Whitney hand punch tool. It comes as a set with dies for punching small holes instead or drilling.
     
  15. GEISTERFAHRER
    Joined: Apr 23, 2010
    Posts: 85

    GEISTERFAHRER
    Member

    This?
     

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  16. Gator
    Joined: Dec 29, 2005
    Posts: 4,016

    Gator
    Member

    Got a set of those from my brother for Christmas - he swore I'd use them every day but I still haven't opened the case, other than to look at them...
     
  17. Over here they're known as a "Chassis Punch" . Make sure you well oil the threads and moving faces , and they'll last a life time .

    Shrapnel :cool:
     
  18. Thanks for the above tip!
     
  19. Dane
    Joined: May 6, 2010
    Posts: 1,351

    Dane
    Member
    from Soquel, CA

    Google "knockout punch" and you'll get a bunch of hits. I bought mine used 2 or 3 at a time off eBag to get a set of good quality used ones at a decent price. They come up all the time on eBay, so bid a decent price and sooner or later you'll win enough auctions and end up with a good selection. The used Greenlee sets are stupid expensive. The cheapos will work, but how long they last and how clean a cut is the question.
     
  20. Yep nother name for the same tool.
     
  21. 49ratfink
    Joined: Feb 8, 2004
    Posts: 18,084

    49ratfink
    Member
    from California

    OOOH... I like the ones that come with the dimple die
     
  22. oj
    Joined: Jul 27, 2008
    Posts: 6,257

    oj
    Member

    The best set that i have is called 'Pro-Flange' they both punch and flare (dimple) and they are made in England and, as you described, they take an allen wrench. I made an adaptor to use them in my hydraulics. I have many different punches, this set is the best set i have ever seen, excellant quality.
    I believe these were intended for the aircraft industry. The flare or dimple in the automotive industry has a well defined edge and raises the panel at an angle. The aircraft flare is much more defined and kinda rolls the outer edge, it don't quite get to 90deg but it is greater than the automotive one. If you go to the mittler bros web site i believe they have a comparison.
     
    Last edited: Jul 13, 2012
  23. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,583

    Rusty O'Toole
    Member

    Have heard them called boiler cutters too.
     
  24. gasolinescream
    Joined: Sep 7, 2010
    Posts: 614

    gasolinescream
    Member

    Thank you all for the response. Wow:eek: they aren't cheap but sure do make a nice clean, rolled edge, which i really like.

    I don't mind shelling out decent money for tools as long as they'll get used and as i'm planning to do quite a few various size holes i'd rather get a quality tool to use.

    OJ thanks for the info and ref the allen key. Thought i was going mad, I remember where i used them now, it was when i used to fit sunroofs.

    I'll be keeping my feelers out for some soon, thanks again with the info HAMB'ers.

    :cool:
     
  25. Phil1934
    Joined: Jun 24, 2001
    Posts: 2,717

    Phil1934
    Member

    Last edited: Jul 14, 2012
  26. dan c
    Joined: Jan 30, 2012
    Posts: 2,214

    dan c
    ALLIANCE MEMBER

    we always called it a die--good for making a larger hole
     
  27. Ford blue blood
    Joined: Jan 4, 2009
    Posts: 694

    Ford blue blood
    Member

    They are chassis punch in the electronics field, I have a set, both round and square. Love them!
     
  28. Thats what I always called them in SoCal, chassis punch ... I think the names comes from the days of making radio chassis' and the necessary holes.
     
  29. bad4dr
    Joined: Jul 28, 2011
    Posts: 41

    bad4dr
    Member

    We called them slugbusters. They work great.
     

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