I've actually done this
Not that small though.
The basic rules are what has already been stated:
1/2 turn in (Slow) 1/4 turn out - then when the teeth grab again, "repeat"
Also - Use 3-in-1 oil or any other "light oil" and use a bunch!!! Don't spare it!! If the oil drips out when you pull (turn out) 1/4 - then it's fine!!! After every 4 turns (One Complete revoultion) take the tap out & drip a drop or 2 of oil down the hole and clean off any "Shavings" from the tap. Do this "Every complete revolution"!!
Last thing: All "good Quality" taps have the size of the tap on it as well as a drill size. Get a new, sharp, drill in this size & use it slowly as above, same thing as above - Oil Oil Oil!!!
If you take your time & use the right, new, sharp tools, this should be easy!!!!
Best of luck!!!!