left hand threads

  1. woodchucker

    Going shopping , what color nail polish should I buy :-)

    Yea, not what you thought right :grin: I've been using Testors Enamel RED on my left hand drill bits, end mills, taps... I need to expand. The made for would be a cutter specifically made for that use. I know newer taps have this, but I have a ton of Old Stock made in USA. So if you can think...
  2. F

    Left hand threads on the LMS 3540 8.5x20 lathe

    I needed to cut some left hand threads the other day. In fact, I mostly wanted to try it. The manual says to swap one of the 42t gears with the spacer on the other shaft. Sounds simple. Not so much! I found that when I moved the banjo to engage the gear the A gear hit the spacer in its new...
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