uxcell 10mm x 20mm Double Cut Cylindrical Tungsten Carbide Rotary File Bit Product Name : Rotary File;Design : Cylinder Shape, Radius End, Double Cut Cutting Size : 10 x 20 mm / 2/5" x 11/14" (D*L);Shank Diameter : 6 mm / 15/64" Total Length : 55 mm / 2.2";Material : Tungsten Carbide Color : Silver Tone, Gray;Net Weight : 23g Package Content : 1 x Rotary File