The message .com
from "Osprey" contains these words:

Use some white spirit as the lubricant, and follow advice by previous
poster .. slowly doe sit.

Mostly it's down to technique. Forward till it starts to get tight, then
back off to clear the swarf, then forward till it starts to get
tight....

If you try to just bang the tap straight down the hole you'll end up in
trouble.

--
Skipweasel
Pay no attention to that man behind the curtain.