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Warning--- Drilling

Discussion in 'SAFETY ISSUES & EQUIPMENT' started by Bill Gruby, Mar 22, 2015.

  1. Bill Gruby

    Bill Gruby United States Global Moderator Staff Member H-M Supporter-Premium

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    This is for the newbie and pro alike. What you see there is one continuous chip created by a 1" drill bit. It is the size of a baseball and as sharp as anything you can come up with. It will tear you up in a heartbeat. If you see one start to form, STOP THE MACHINE and clear it. It does not like you. A trip to the ER is not fun.

    "Billy G" 102_0947 (900 x 598).jpg
     
    Last edited: May 6, 2015
  2. davidh

    davidh United States Active User H-M Supporter-Premium

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    i instantly thought the "red" was the result. . . i had some of that of stainless steel. deadly. .
     
  3. pdentrem

    pdentrem Active User Active Member

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    I tend to lift the bit when the chip starts to get crazy just to avoid this situation.
     
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  4. Tony Wells

    Tony Wells United States Vice President Staff Member Administrator

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    I'd say that pecking is in order. ;-)
     
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  5. Andre

    Andre Active User Active Member

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    On some drills I put a V in the middle of the flute with the corner of a grinding wheel, like the edge of a roughing endmill, and it helps break chips. Birds nests are dangerous for sure!!!
     
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  6. compact8

    compact8 Active Member Active Member

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    Thanks for sharing !
     
  7. randyc

    randyc United States Active User Active Member

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    As Tony noted, that's one of the main reasons we "peck" as we drill: to break up the chips and clear them (as well as momentarily cooling the cutting edge)! You are absolutely correct in pointing out the danger of that stringy mess (also very scary when it happens in a lathe).
     
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  8. taycat

    taycat Active Member Active Member

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    Randyc i had a nest happen when my 7yr old boy was on lathe.
    stopped lathe and asked him how to get rid of it, he said " just pull it off " giving that what a stupid question dad look.
    so i got a rag and glove then pulled it off and showed him rag was shredded, he looked at his hand then back to rag and had worried look on his face.
    now if he goes on lathe he makes sure he as glove and pair of pliers.
    and he turns it off at wall before he touches anything.
     
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  9. cathead

    cathead Active User Active Member

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    I use intermittant cuts with the down feed handle. Then you have short pieces and also give
    the bit a chance to cool some. Deep holes require a lot of up and down with the feed handle
    to keep the hole clear.
     
  10. Smithdoor

    Smithdoor United States Active User Active Member

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    Yes that some new to drilling
    Just lift the drill from time to time wield drilling this how most machinist do to stop the ball from forming
    You can grinded a chip breaker in drill bit but as you sharpen the drill you have grinded past the chip breaker

    Dave

     
  11. Tony Wells

    Tony Wells United States Vice President Staff Member Administrator

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    Hey Bill, you forgot to mention that it will also knock your hex key off the workpiece. Or your dial indicator or anything else lying loose within range. It's good practice to clear the work zone of anything not clamped down.
     
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  12. Bill Gruby

    Bill Gruby United States Global Moderator Staff Member H-M Supporter-Premium

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    Yup, if it's in the way that ball of chips will reach out and find it. It has no conscience what-so-ever.
     
  13. savarin

    savarin Active User H-M Supporter-Premium

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    At last, an advantage of my pi## weak drill, no way could it drill a 1" bit that easy.
     
  14. Oscar_Eisenschmidt

    Oscar_Eisenschmidt United States Iron Registered Member

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    I worked in a shop where we had a girl sweeping floors who grabbed a bundle of lathe filings that were stuck under the lathe. Cut through her rubber gloves and clean to the bone, hard way to learn that lesson...
     
  15. Micke S

    Micke S Sweden Active User Active Member

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    Good thread that hopefully prevent serious injuries.

    I have a collection of gloves for different purposes. Below are two examples. The white ones are for general wrenching and the black Kevlar gloves are used for nasty stuff like removing chips from the lathe, cutting metal with a handheld grinder or replacing broken green house windows. There are also thin and tight gloves that can be used without being dangerous when turning, and feels okay when working with small parts.

    Eye-protection is mandatory and shouldn't need to be mentioned at all...



    DSC03900.JPG

    DSC03898.JPG

    DSC03899.JPG
     
  16. gi_984

    gi_984 Active User Active Member

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    No Gloves. I use this: 0952009-23.jpg
    Plus a big pair of pliers.
     

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