https://i.ytimg.com/vi/Bc52fcrHvAA/hqdefault.jpg Learn 8 different techniques of cutting holes in your mesh in just about 8 minutes! Perform this task on flat and curved objects. Discover Blender’s powerful modeling features and take advantage of them in your every day projects! Made with Blender 2.67b. You can find more Blender tutorials on our website: http://www.evermotion.org/tutorials/category/blender/43/0/ source