Flat-End Cylinder bit: In treating the surface area and side grooves. Removes shine from the nail plate Corn Bit:Used to quickly remove nail gel,trim and polish the nail before polishing,remove dead skin and calluses on the palm Safety Bit:Not only used under the nail cleaning, but also sidewalls.Some nail technicians use this for making designer holes in the nails Flame Bit:Used to create a lip of dead cuticle in order to better remove dead skin Large Barrel Bit:Do surface work on the nail easily .Shorten and shape the extra thick and irregular nails.Backfill cutting.Make a smile line Needle bit: Filing away residual cured gel or cuticles in hard to reach areas. under-nails clean, sidewalls, backfills. carving out designs and smile lines Nib Bit: Removing hangnails. Used for delicate cuticle work, lifting the eponychium Ball bit: Clean sidewalls and under the nails and prep for backfills Silicone Bit:Polish and polish the nail surface to make the nail surface smoother Brush Bit:Can easily clean the dust on the bits or nails , protect the bits.