•Refining: The medium barrell bit is perfect for refining the shape of your nails, giving them a smooth and polished finish.Removal: This efile bit is also great for removing any excess or unwanted material from your nails, such as gel polish or acrylics.Debulking: The Grace Carbide Barrell Medium Efile Bit can also be used to debulk thickened toenails, making it an essential tool in any podiatrist's kit.