uxcell Radius End Double Cut Tree Shaped Rotary File Carbide 5/16" x 25/32" Product Name : Rotary File;Design : Tree Shape, Radius End, Double Cut Cutting Size : 8 x 20 mm / 5/16" x 25/32" (D*L);Shank Diameter : 6 mm / 15/64" Total Length : 65 mm / 2.6";Material : Tungsten Carbide Color : Silver Tone, Gray;Weight : 30g Package Content : 1 x Rotary File