We asked Vicki Peters, vice president of the Vicki Peters Signature Series for Kupa Inc., to answer with this useful chart:
Bit Style | Benefits | Use |
2-Week Backfill | Small 1/4-sized bit to cut new smile lines | To trench out a new smile line on a backfill |
4-Week Backfill | 1/2 barrel bit to cut new smile lines and remove product | To trench out a new smile line and remove product on a backfill |
Inverted Backfill | 1/2 barrel angled bit for easier cutting | To trench out a new smile line and remove product on a backfill |
Small Barrel | Slimmer and easy to see as you work | For surface work, refining C-curves, and shortening |
Large Barrel | Larger for more surface contact | For surface work, refining C-curves, and shortening |
UNC (Under the Nail Cleaner) | Tiny, slim pointed bit to get into tight spots and under the nails | For cleaning under the nail and drilling holes |
Cone | Longer cone for more surface contact | For cuticle work, sidewalls, and under the nails |
Slim Cone | For tight areas such as sidewalls | For cuticle work, sidewalls, and under the nails |
Football | The curvature of the football allows you to get underneath a long, curved nail | For cuticle work and under long nails |
Tapered Cone | Flat-topped cone for refining sidewalls and cuticle areas | For surface and cuticle work, and under the nail |
Safety Bit | Rounded top for safe use at the cuticle | For surface and cuticle work, and under the nail |
