Nail drill bit "UNDER CUT"Product description: UNDER CUT special nail drill bit designed for the under refill technique. Its shape and size have been specially designed to remove the natural nail underneath the gel or acrylic without any risk of injury. Extremely strong and durable, made of the finest materials, doesnt get heated and can be sterilized both chemically and on high temperature. These nail drill bits are made in Germany by one of the oldest and most prestigious