The newly improved pearl drilling machine is exceptionally well built for drilling pearls or other stones. It securely holds the stones while you move the table toward the stationery motor. Using special high speed steel bits, it drills straight, clean, accurate holes without chipping the surface of the pearl. The table is mounted on two stainless steel round bars that guide its movement with precision. Holders for larger stones are also available. This machine can be converted to 220 Volt with transformers available at most electronic stores.