Drilling a 2mm Hole Through a Shell or Rock

This video shows a 2mm hole being drilled all the way through a thick shell using a regular battery operated drill. You will need a small container of water and a piece of wood. You will also need a 4mm masonry drill bit and a 2mm diamond coated drill bit. This is a great way to make a pendant for a piece of jewelry. This method can be used with thick or thinner shells, stones, rocks, etc.