Description Description Size: 20.0 * 15.0 * 5.0 cm s: , B-package Material: stainless steel Package contents: 1 pc grinding kit (30 pcs) 1. Tungsten Carbide Material The nail drill bits are made of tungsten carbide and work well in carving, cleaning, grinding, sanding, polishing, etc. Suitable for natural nails and almost all gel nails. 2. Shank diameter of 2.35 mm Fits most rechargeable or electric manicure nail files. Finger Toe Care Electric Machine Manicure Pedicure Kit Electric Art File. 3.30 pcs different bits to choose from shapes and sizes are great for removing cuticles, polishing acrylic nails, smoothing, shaping and cleaning. 4. The bit set is suitable for nail salons, beauty salons, spas or home manicure pedicures, manicure for beginners. 5. Wide application The nail drill bits have optimal strength, sharpness and durability. as well as no clogging for nails. The brush bit can easily clean the dust on the bits or nails, protecting the bits after each use.