How to UseThin Needle Bit Filling away residual cured gel or cuticles in hard to reach areas, cleanning sidewalls, under nails, backfills;Needle Bit Filling away residual cured gel or cuticles in hard to reach areas;Flame Bit Used to create a lip of dead cuticle in order to better remove dead skin;Nib Bit Removing nails, For Lifting the eponychiumdelicate cuticle work;Safety Bit Doing surface work for backfill cutting, shorten, infill cuticle;Micro Ball Bit Safely removes dead skin, clean around cuticles and under the nails;Ball Bit Clean under the nails, sidewalls and prep for backfills;Flat-End Cylinder Bit In treating the surface and side grooves. Removes shine from the nail plate;Silicone Bit Polish nail surface to make nail smoother.Cleaning Brush Shine or clean nail surface and other drill bitsPackage Infomation:Item Name Nail Drill Bits KitsDiameter of Shank 3/32 Inches (2.35mm)Material Tungsten CarbideQuantity 20 pcs in 1 BoxFeatures High Temperature Resistance, Corrosion resistance, Sharp and Durable