uxcell Diamond Needle File Set, 4.5mm x 180mm Titanium Coated File Handles 10pcs, Includes Round Square Cutter Double Half Round Flat Triangle Oval Flat Pointed Triangle - a22012400ux0392

• Needle File Set: Shank Diameter: 4.5mm / 0.18". Total Length: 180mm / 7" (approx.). Diamond-plated Length: 70mm / 2.76". Files Types: Round, Square, Cutter, Double Half Round, Flat, Flat Triangle, Half Round, Oval, Flat Pointed, Triangle Wide Applications: Suitable for shaping and polishing metal, wood, marble, stone, plastic. Works on small and delicate projects. Especially perfect for finely grinding models and instrument parts, and dies. Features: Electroplated diamond has fine grains, high hardness and good wear resistance. PVC plastic dipped handle provides firm and comfortable grip in use when exposed to fluid or moisture. Titanium plating can offer capability, wear resistance, rust prevention, and long service life. Easy to Use: When using the file, it should not be too fast. The file usage frequency is 40 times per minute. For long-lasting use, please use a lubricant (such as water) when using diamond needle files. Tips: Do not use a needle file to polish the oxide layer of the workpiece. When filing, it should be ground in the same direction, not rubbing back and forth. The file teeth are clear, sharp and durable.