About this item What is in Box — includes 60 pcs sanding disc nail drill bit 1 inches/2.5 cm diameter in multicolor, sandpaper grits #80, #150 and #240 respectively, and 1 of nail drill bit foot, diameter is 1 inches/2.5 cm. The cuticle drill bits for nails kit comes in three different thicknesses to meet your different preferences and needs. Premium – The sandpaper discs are made of premium sandpaper and emery particles. Different grit sandpaper discs can be selected according to the user’s needs to easily remove cuticles, dead skin or calluses, leaving your foot skin soft and smooth. Easy to Use – Just simply remove sticker from the back protective layer ofthe foot file sandpaper disc , and attach the adhesive layer to the metal nail drill bit, connect the electric foot file, will start using it to effortlessly for comfortable effortless experience.3/32″ shank suitable for most e-file nail drill machine. Universal Nail Bits for Nail Drill – The 2.5mm shank diameter universal size nail bit fits most electric nail drill machines, you just need to put the nail bit on the electric nail grinder and start your manicure and pedicure, perfect for nail salon use, personal manicures and pedicures, or DIY nail art at home. Wide Usage- The drill bits and Sanding Paper Discs are suitable for removing dead skin, removing dry skin, removing hard skin, trimming thick nails and removing calluses to keep skin healthy and smooth, etc. In addition to this, the replaceable drill bit nail set can also be used as a good tool for polishing DIY crafts, gadgets, etc., bringing more convenience to your life.