How to Use the Blender snapping tool
The snapping tool in Blender allows you to snap your mesh selection to any other vertice, edge, face, or volume. This is a very handy technique for precision modeling. Whether you're new to the Blender Foundation's popular open-source 3D computer graphics application or are a seasoned digital artist merely on the lookout for new tips and tricks, you're sure to be well served by this free video software tutorial from the folks at CG Cookie. For more information, including step-by-step instructions, take a look!