Feature:1. Made of Carbide, the drill bits are sturdy enough to remove hard gel nail, creating less dust with little friction and heat.2. Suitable for most size 3/32\" nail drill machine. Suitable for nail salon, beauty parlor, spa or personal manicure pedicure, DIY nail art at home.3. Best gift for women who are nails beginners on Thanksgiving and Christmas.4. Includes fine barrel bits, coarse barrel, safety bits, a small cone bit, 2 UNC drill bits, and a cleaning brush. Comes with a box for easy storage.Specification:Overview:This set is a nail grinding heads for nail drill machine, a necessary tool for polishing and smoothing nail. Why not have a look now?Features:Made of Carbide, the drill bits are sturdy enough to remove hard gel nail, creating less dust with little friction and heat.Can be used for cleaning nail cuticle to polish your nails, removing callous, gels, and acrylics.Includes fine barrel bits, coarse barrel, safety bits, a small cone bit, 2 UNC drill bits, and a cleaning brush. Comes with a box for easy storage. Suitable for most size 3/32" nail drill machine. Suitable for nail salon, beauty parlor, spa or personal manicure pedicure, DIY nail art at home.Best gift for women who are nails beginners on Thanksgiving and Christmas.Specifications:Name: Nail Drill BitColor: MulticolorMaterial: CarbideQuantity: 7PCsItem Size: 3 * 3 * 6.5cm / 1.18 * 1.18 * 2.56inIten Weight: 55.5g / 1.96ozPackage Size: 3.5 * 3.5 * 6.7cm / 1.38 * 1.38 * 2.64inPackage Weight: 56.4g / 1.99ozPackage List:1 Box * Nail Drill BitPackage List:1 Box * Nail Drill Bit