Whether you like to use a pen or pencil, you need to think about which is suitable to use during your test.
OET TEST REGULATIONS
The OET test regulations give clear instructions about which items of stationery can or can’t be taken into the test. This makes looking through your pencil case to check your writing things an important step in getting ready for test day.
Make your decision early
Make your decisions about your stationery needs to happen as soon as you start preparing for the test. It’s a really good idea to get comfortable with the pen or pencil you are going to use. That way you won’t have any problems with a new pen which doesn’t work or a pencil which doesn’t feel comfortable to hold on the day.
Mechanical pens or pencils (anything you have to click to reveal the lead or the pen tip), highlighters, correction fluid or tape are all banned, so don't carry them with you.
When you are practising for the test, don't use highlighters etc so that you get used to not having them around. It won't feel strange on test day if you are used to not having these things to use. If you don't normally write with a pencil, practise!
A 2B pencil
The regulations state you can use pen or pencil for any part of the test EXCEPT Reading part B, which MUST be completed with a 2B pencil.
Not sure what a ‘2B’ pencil is? ‘B’ is the measurement of blackness of the pencil lead. Any stationery shop selling a range of pencils will have the ‘B’ measurements written on the pencil somewhere. For everything else, you can choose to use pencil or pen, however:
In the test you will only be allowed to carry your stationery items in a clear plastic bag.
Keep these things in mind for when you're preparing for your test.