Circle cutter for $2 at Diaso! Yeahs! Thanks to Joan's recommendation, i'm so happy i finally can cut a proper circle.
Cuts 1cm-15cm circles and the blade is pretty sharpe. I used my cutting mat for cutting but there is a slight difficulty because the blade is like a pen-knife blade. So i've gotta turn my paper slightly while cutting. For $2, i don't mind turning abit of my paper. haha!
And of course i'm delighted that i can cut slim rim circles! hoho!!
A few days later, i saw this circle cutter on the "Recommended" shelf. *Satisfied*