i want to bore a hole in a desktop so i can fit a cable grommet so the cables are tidier, so what size do i need seen some below from 50 to 80mm the cables that will be going through the hole will be two 3 pin plugs.
https://www.google.co.uk/search?q=c...HS0QXhq4HwAg&ved=0CAsQ_AUoAQ&biw=1600&bih=785
https://www.google.co.uk/search?q=c...HS0QXhq4HwAg&ved=0CAsQ_AUoAQ&biw=1600&bih=785