7Pcs Nail Drill Bits Comes with various shapes of tungsten carbide nail drill bits this drill bits set meets all needs of manicure pedicure suitable for professional manicurists and beginners Excellent for nail preparation acrylic gel nails removing polishing nail surface cleaning cuticle area dead skin trimming Professional Carbide Nail Drill Bits Comes with 2pcs Finegrit bits 3pcs Mediumgrit bits 1pcs Coarsegrit bits all are made of optimum strength tungsten carbide material which is sturdy sharpen enough to remove sharpen smoothen acrylic gel nails thick extension nails builder gel nails natural nails Low Heat Low Noise Made of highest precision tungsten carbide metal with superior strength sharpness durability heat resistance and corrosionresistant longlasting and sturdy Ideal tool for nail salons beauty parlors spa or personal manicure or pedicure Safety Nail Drill Bits Highquality material and rigorous test design creates less dust with little friction and heat protecting the skin from overheating harm Universal Shank Size 332235mm universal shank size it is suitable for most electric nail drill machines or rechargeable efile We will be glad to help if anything you need rest sure that we will stand behind our products