This popular shape Rounded Cone is used for manicures.
These bits are of three variants.
Fine (red) bits are recommended for polishing around the nail and near the nail plate after removing the cuticle.
Medium (blue) bits are recommended for removing dry, dead cuticle, for treating the nail plate, removing the gloss of natural nails prior to applying acrylic nails.
Coarse (green) recommended for removing rough, dry, dead cuticles around the nail and nail's wall, polishing of cracks of the heel in the pedicure.
Upon completion of the work with a client, all bits that were used to perform the procedure must be washed, cleaned, sterilized and dried. A solution of at least 70% alcohol is recommended for effective disinfection.