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Thread: Starting small screw threads

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    olderdan's Avatar
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    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)

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    Content Editor DIYer's Avatar
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    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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