This bit is coarse grit ball shaped is used for hard skin & cleaning up the eponychium (the hard skin above the nail plate) or removing loose cuticle thats been lifted from the nail plate. NOT for the natural nail! Is also used for pedicure treatments.
Refer to your e-file training or Russian manicure training for use.
Standard shank size 3/32" fits most e-files
Due to the nature of the Burrs use & required cleaning of them the lifetime of them is about 3-5 months.
For professional use only.