Tap Drill

Discussion in 'Workshop Tips and Secrets / Tools' started by Chris In Marshfield, May 10, 2018.

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  1. May 10, 2018 #1

    Chris In Marshfield

    Chris In Marshfield

    Chris In Marshfield

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  2. May 10, 2018 #2

    BoKu

    BoKu

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    This does look like a neat tool for some limited applications. The pictures show sizes that would make a Whitworth fan swoon, but the specs only show a modest set of metric sizes. There doesn't seem to be much here for standard aircraft sizes. And if there were, I'd use it on 6-32 only under extreme duress.
     
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  3. May 11, 2018 #3

    Aerowerx

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    Skeptical here, on the quality of the threads.

    And what do you do if you are not doing a through-hole? The hole you drill with this would be twice as deep as the threaded part, wouldn't it?
     
  4. May 11, 2018 #4

    Turd Ferguson

    Turd Ferguson

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    Combination drill & taps have been around for quite a while. They work great in aluminum but steel is a bit more challenging. The whole set for $29 means they are made out of chinese magic metal. A 1/4 -20 size from MCS would be about $12 ea.
     
  5. May 11, 2018 #5

    Dana

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    Note it's only intended for thin materials, up to 10 gauge..
     
  6. May 11, 2018 #6

    BBerson

    BBerson

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    Looks good for thin metal.
    The HSS set is $49.99
    I would only need one or two sizes, not a set
     
  7. May 11, 2018 #7

    Victor Bravo

    Victor Bravo

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    Another issue is that I doubt they make those in 100 degree countersink angle for any airplane hardware.
     
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  8. May 12, 2018 #8

    Armilite

    Armilite

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    ===============================================================

    Harbor Freight has something similar $12.99 SAE & Metric.

    https://www.harborfreight.com/metric-drill-tap-deburr-bit-set-95529.html

    https://www.harborfreight.com/sae-drill-tap-deburr-bit-set-95528.html
     
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