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If that neck is made of aluminum you shopuld use Isopropyl Alcohol to lubricate the tap and not grease or oil. The alcohol evaporates at a faster rate keeping the chips cooler which is where the issue with clogging the bit comes in.
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Kerosene or Rapid Tap for aluminum is preferred for tapping and cutting Al. I've never heard of using alcohol.
I spent quite a bit of time in machine shops.