Uxcell Double Cut Cylindrical Tungsten Carbide Rotary File Cutter, 8mm x 20mm Product Name : Rotary File;Design : Cylinder Shape, with End Cut, Double Cut Cutting Size : 8 x 20 mm / 5/16" x 11/14" (D*L);Shank Diameter : 6 mm / 15/64" Total Length : 60 mm / 2.4";Material : Tungsten Carbide Color : Silver Tone, Gray;Net Weight : 20g Package Content : 1 x Rotary File