Feature:1. Handle diameter: 2.35 mm, suitable for all nail drill pens on the market, convenient and practical.2. These cleaning brushes can help you clean all kinds of nail art tools, especially suitable for cleaning nail drill bit.3. 5pcs of cleaning brush are available for use, the brush hair are made of different materials, meet your use needs.4. Suitable for metal surface cleaning, decontamination, grinding, dust removal, deburring, polishing, removing residues and dirt in finger nail cracks.5. Equipped with dust cover to better protect the cleaning brush. Light weight and portable, suitable for home use and nail salon.Specification:Condition: 100% Brand NewItem Type: Nail Drill Bit Cleaning BrushQuantity: 5pcsBrush Hair Material: White: wool, brown: horsehair, black: nylon, gold/silver: copper wireHandle Diameter: Approx. 2.35mm / 0.1inProduct Use: Cleaning the dirt in nail cracks and metal grinding head stripping residue, polishing, dust removal, oxide layer. Package List:5 x Cleaning Brush