Parabola-shaped (corn) nail drill bit with a medium cross-cut pattern. Uses in machine manicures and pedicures: removal of thin artificial material such as gel polish, removal of part of the nail plate, work on thickened natural nails and callus treatment. ISO 500.104.275.176.050. Working diameter: 5.0 mm. Working length: 14.0 mm. Shank diameter: 2.3 mm. Medium tooth size. Uses are recommendations only; select the bit individually for each client.