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Thread: Tapping on the Mini Mill

  1. #1
    Supporting Member jjr2001's Avatar
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    jjr2001's Tools

    Tapping on the Mini Mill

    I ran out of head space on my mini mill and needed to tap some holes after they were drilled.
    I prefer to do it right after drilling so everything is always lined up. My 1/4-20 tap likes to slip in
    the chuck on my mill so I just went to the tried and true method of using a "center" to line up the tap.
    This is not as good as a tap follower but that would not fit in the space I had to work with so we compromise.

    The "center" is just a 1/8" shank from a broken carbide end mill. I always save the broken bits for making
    "tools" or cutters at a later date.

    I bring down the center into the center hole in the tap and then turn the tap about 1/4 turn and then bring down
    the quill again. A small tap handle fits in there very well and once I get 3 or 4 threads I discontinue the use of the center
    and just finish tapping in the normal manner.

    Cheers, JR
    Attached Thumbnails Attached Thumbnails Tapping on the Mini Mill-img_2462.jpg   Tapping on the Mini Mill-img_2463.jpg   Tapping on the Mini Mill-img_2464.jpg   Tapping on the Mini Mill-img_2467.jpg  
    Back to the shop.

  2. The Following 5 Users Say Thank You to jjr2001 For This Useful Post:

    Altair (03-03-2019), Andyt (03-05-2019), Jon (03-03-2019), Paul Jones (03-03-2019), rossbotics (03-03-2019)

  3. #2
    Supporting Member rossbotics's Avatar
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    rossbotics's Tools
    Nice looking tap handle their JR.

    Doug
    Comments are always welcome
    Doug

    Subscribe to my you tube channel

    https://www.youtube.com/channel/UCDD..._as=subscriber



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  4. The Following User Says Thank You to rossbotics For This Useful Post:

    jjr2001 (03-03-2019)

  5. #3
    Supporting Member jjr2001's Avatar
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    jjr2001's Tools
    Thanks Doug, I like this type since it is easy to change taps and the handle will fit where others are just too big.
    I have made two of them and for small taps they are my go to tap handle.

    Cheers, JR
    Back to the shop.

  6. The Following User Says Thank You to jjr2001 For This Useful Post:

    rossbotics (03-03-2019)

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    Thanks jjr2001! We've added your Tapping Center to our Tapping and Threading category,
    as well as to your builder page: jjr2001's Homemade Tools. Your receipt:





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  8. The Following User Says Thank You to Altair For This Useful Post:

    jjr2001 (03-03-2019)

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