How to Use Retopo to punch a hole in an object in Blender

See how to use use the Retopo tool and View options to make round holes in tubes (or other surfaces) with Blender 2.5. Whether you're new to the Blender Foundation's popular 3D modeling program or a seasoned graphic artist just interested in better acquainting yourself with the application, you're sure to be well served by this free video tutorial. For more information, including detailed instructions, take a look.