ITEM NAME:7PCS Electric Nail Drill Bit Set, Nail Bits Tungsten Steel Rotary Burrs Cleaning Description: Come with different sizes bits( XC,C,M,F) and brush,So that you can sharpen, grind, nesting, carving, smoothing, polishing and remodeling gelatin and acrylic nail,perfect tool for Professional salon and personal use. Tungsten Steel material,Corrosion-resistant,durable and heat-resistant. Helping polish and reshape your natural and acrylic nails. Great for use nail drills and other drills using sanding bands. Suitable for professional, nail salon, nail art school / college, nail art artist, personal use etc. Specification: Material: Tungsten Steel Length: approx. 4-5 cm/ 1.57-1.97 inch Handle Diameter:approx. 2.35mm(3/32 inch) Color:Colorful Package Includes: 7 Pieces Nail Art Drill Bit with Case SKU: DMO0001525362017760.Suitable for professional, nail salon, nail art school / college, nail art artist, personal use etc. Tungsten Steel material,Corrosion-resistant,durable and heat-resistant. Material: Tungsten Steel.