In order to get the pieces into the space they had to be winched up from the ground floor, through a 4 metre wide hole in the ceiling which is on the sixth floor. (treehugger.com)
Prep chocolate shavings by using wide holes of a box grater. (cookandbemerry.com)
To collect a few milligrams of his bone powder for analysis, scientists in the Natural History Museum's ancient DNA lab drilled a tiny, 2 mm wide hole into the ancient skull. (sciencedaily.com)