This Set Of 5 Diamond Files Measure 2 X 100 X 40mm And Have A Diamond Coating For Extra Durability And Sharpness. They Also Feature Dipped Handles, Which Are Color Coded For Easier Recognition. Great for getting into tiny areas, such as working with jewelry The dipped handles provide comfort when handling, and also make for easier recognition These little files are extra strong and sharp with the diamond electroplated surface Five different shapes, to meet most any need when filing Excellent for smoothing those rough edges after you use the drill or the saw