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  1. 15th June 2020, 04:55 AM #1
    sussertown
    sussertown is offline Member
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    Default Drill bit problem

    I'm puzzled by one small twist drill bit. It is much more aggressive than any of my others. It often runs off without me going too deep. Sometimes I can't pull it out on the forward setting and it pulls out of my drill. What did i buy?
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  3. 15th June 2020, 12:01 PM #2
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    verawood
    verawood is offline Bulnesia Arborea
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    Default

    G'day S

    What does the tip look like under magnification.
    If you can do and post some pics that might get the answer quicker.

    cheers

    Keith

    Off Topic: I recently saw Colorado Springs in a rail doco, nice looking place.
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  4. 15th June 2020, 01:52 PM #3
    elanjacobs
    elanjacobs is offline Taking a break
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    Default

    I'm guessing the back clearance angle is too steep; I've found that varying that angle tends to affect how aggressive the bit is.
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