&gt; a kind of jack-tool<p>A ball point pen works great too. :)<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=G5mvvZl6pLI" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=G5mvvZl6pLI</a>