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Thread: Starting small screw threads

  1. #1
    olderdan's Avatar
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    Jun 2016
    Devon UK
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    olderdan's Tools

    Starting small screw threads

    We all know the importance of starting threads square to a pilot hole and there are many excellent devices for doing so on the forum but this is my simple method which works for me.
    I use an old small drill chuck from a dead power drill which has a hardened shank and a simple sliding sleeve fits this allowing the rotation within, (in my case an old valve guide) this is mounted in the stationary pillar drill chuck.
    This method gives me a good sense of feedback from taps down to 8BA and a bottoming tap will then follow true.

    Starting small screw threads-screen-shot-01-13-17-07.38-pm.jpg

  2. The Following 8 Users Say Thank You to olderdan For This Useful Post:

    DIYer (01-16-2017), Moby Duck (08-29-2017), Paul Jones (01-13-2017), PJs (01-17-2017), rlm98253 (01-21-2018), tonyfoale (01-14-2017), Toolmaker51 (01-13-2017), wb8nbs (01-23-2018)

  3. #2
    Content Editor DIYer's Avatar
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    Aug 2013
    Thanked 764 Times in 699 Posts

    Thanks olderdan! We've added your Small Screw Starting Method to our Drilling and Drill Presses category,
    as well as to your builder page: olderdan's Homemade Tools. Your receipt:

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