Notpolish's Pointy bit is a red coated carbide bit is designed to get in those areas that are close to the skin. No worries! This bit is sharp to get in but gentle to the natural nails. Will remove excess that is under the nails. Recommended to not let the Bit soak in acetone or barbicide longer than 10 minutes. Any time longer than suggested will result the Bit to discolor the red coat.