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Thread: spot face cutter from a drill bit

  1. #1
    Supporting Member Frank S's Avatar
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    Aug 2015
    Peacock TX
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    Frank S's Tools

    spot face cutter from a drill bit

    What do you do with an old drill bit that has outlived most of its usefulness ?
    Answer, turn it into something else
    I chucked this 1" drill bit in my lathe covered the bed then cut off the bit with a grinder then ground away much of the remaining fluting thenfinished off by turning it with a carbide cutter when nearing the base of the fluting on most drill bits you have gone past most of the induction hardening and they can be turned without much difficulty
    Someone remind me that I need to build a tool post grinder though
    after shaping the end like i needed it I took it to the bench grinder and ground a slight relief to the remaining flutes
    I need to reharden it but figure this was a one-off job anyway
    spot face cutter from a drill bit-img_20211201_111109sf.jpg
    spot face cutter from a drill bit-img_20211201_112853sf.jpg
    spot face cutter from a drill bit-img_20211201_113230sf.jpg
    the fitting champered and spotfaced with the 2 tools I made
    spot face cutter from a drill bit-img_20211201_114018sf.jpg

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  2. The Following User Says Thank You to Frank S For This Useful Post:

    mwmkravchenko (Dec 3, 2021)

  3. #2
    Content Editor
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    Aug 2013
    Thanked 1,627 Times in 1,459 Posts

    Thanks Frank S! We've added your Spot Face Cutter to our Machining category,
    as well as to your builder page: Frank S's Homemade Tools. Your receipt:

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