... to choose 3,for doing acrylic nails and sculptured nails Diamond Bits for doing acrylic nails and sculptured nailsItem NO : LW ... -B01Feature :1. Diamond Bits is made of tungsten carbide2. 3/32" shaft diameter ... electric micro grinder3. Golden coating, no rust for longer lifeThis Diamond Bits is used for filing, shaping, thinning, cleaning, and back ...