uxcell 6mm x 3mm D Type Ball Shaped Double Cut Tungsten Rotary Grinding Files Product Name : Grinding Files;Model : Ball Shape (D Type) Tooth Form : Double Cut;Material : Tungsten Carbide Shank Diameter : 3mm;Tip Diameter : 6mm Total Length : 43mm/1.7";Color : Black Gray Net Weight : 3g;Package Content : 1 x Tungsten Carbide Grinding Files