Universal Size Nail Drill Bit: This nail drill bit is made of premium tungsten carbide.Universal 3/32" shank suits most professional electric nail drills and rechargeable nail files. Easy to install and change. Grit: Extra Fine. It's suit for right-handed. Dual Heads Nail Drill Bit:This nail drill bit is double heads design. Needle head ideal for hard skin cleaning, under nail cleaner and smoothing cuticles, side wall, nail surfaces.Round head is perfect for Grinding and Sanding, Polishing,Shortening.Safety nail art tool for both nail beginners and technicians. Cuticle Cleaner Nail Drill Bit: Suitable for nail preparation, cuticle removing, dead skin cleaning,under nail cleaning,russian nail art works,clean hard-to reach area.More effective than nail file and buffer and save time.Good for both acrylic nail,artificial nails and safety for nature nails. Fast & Safety: Grit Extra Fine. Quickly and safety to remove dead skin,callous,hard skin and polishing. Fast to clean nail surface,side wall,fingertips,and prep nail art works,no hurt to natural nails.Durable and high strength. Low vibration and less dust,heat resistance and long-lasting. Individual package,easy to store in nail salon and easy to carry during journey.Meet your daily needs for your nail beauty works. Friendly advice:Please clean the nail drill bits after manicure or pedicure with warm water and keep it dry.Cleaning can prevent nail drill bit from getting dull.If the nail drill bit drops on the ground, please don’t use it. It may hurt your nails. BitnBith cuticle nail drill bit is made of tungsten carbide. 3/32 Inch Shank is universal size for most electric nail efile drill machines and rechargeable nail drills that use nail drill bits. This dual ends nail drill bit is professional designed for Nail prep,Under nail cleaner, Grinding, Sanding, Polishing. Surface Area Cuticle and nail Side wall cleaning,backfills cleaning. Safety nail art tool for both nail beginners and nail tech.