Resin on drill bits

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Thread: Resin on drill bits

  1. #1
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    Resin on drill bits

    What works best for you to remove gunk from drill bits?
    Thanks
    Alan


     
     
  2. #2
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    If you are talking about clearing the flutes as you drill a blank the answer is to "woodpecker" the bit. This clears the swarf before it has a chance to compress and pack into the flutes.
    Stop trying to make everyone happy, you're not beer.

     
     
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    If the "gunk" is stuck on material from drilling, a soak in a solvent will dissolve or soften it enough to allow you to wipe it off with a rag. Be mindful of the sharp edges. Plastics will usually come off with acetone, nail polish remover if it isn't easily obtained where you live. Wood resins and oils will usually succumb to mineral spirits or Vasrsol if the acetone doesn't get it.

    Best is to keep it off in the first place. Slow down the speed to keep the bit and blank cool. Use a lubricant like water with a bit of soap in it for plastics. Use sharp bits and if you can look for better quality bits that are sharper and have polished surfaces compared to cheaper bits.

    Pete

     
     
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    The worst thing happened to me once was the drill became permanently stuck so I always woodpecker the drilling remembering the loss of drill and blank being too impatient.I used to drill a hundred or so Corian 1/2 inch squared blanks at a time,tricky and forgive the unintended funny boring. My experiences with drills still supports using drill pointed ie in front of the lands or then spiral lands a small shaped drill that gives clean entry and marvellous drill life,have drilled up to the many hundreds with the one drill,used to buy them by the hundred at wholesale and share with friends, DeWalt brand.

    Peter.
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    I do what Terry does, when finished I wipe the flutes out before putting away.

    COOPER 01/08/1998-31/01/2012

     
     
  8. #6
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    Thanks for the comments.
    When drilling I have an old tooth brush to clean the flutes and when finished I have a brush to clean off the drill. I do this each time that I drill.
    When drilling timbers that are resinous sometimes a bit of gunk sticks and is more difficult to remove.
    Following Curly's advice I will give them a clean up with mineral spirits. Thanks.
    Alan

     
     
  9. #7
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    I saw a video the other day using a stiff brush that seemed to work ok.

     
     
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    The simplest thing is don't drill resinous woods in the first place give it away and let them clean their bits

    White spirits work for me or meths.
    "The only people who never fail are those that never try"


    DL Woodart

     
     
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    Like Terry & Peter I woodpecker when drilling.
    If it looks right it usually is! My namesake
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    A related problem is drilling into wood that has recently been glued - before the glue joint fully cures. By the time the problem has been recognized, the glue/swarf mixture in the flutes will have fully set.

    The first step in addressing this is to carefully use an awl to scratch as much of the gunk out of the flutes as possible. With larger bits, it may be possible to roll up sandpaper to make a cylinder that will fit into the flute without dulling the sharp edge. A solvent such as acetone may also help.

    Oh, and an essential component of the solution is to swear at the bit.
    -=-=-=-=-=-=-=-=-

    Louie

     
     
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