uxcell Round Diamond Needle Files 100mm (4-inch) 150 Grit, 5-Piece Set | Precision Grinding & Polishing for Metal, Glass, Wood, Stone

• Total Length: 100mm / 4-inch; File Length: 40mm / 1.57-inch; Diamond Grit: 150; File Type: Round.
• Electroplated diamond has fine grains, high hardness and good wear resistance (hardness: 62-67 HRC).
• Mini diamond file for fine detail work. Suitable for shaping and polishing metal, wood, marble, stone, plastic.
• Non-slip plastic dipped Handle for easy and comfortable grip
• When using the file, it should not be too fast. For long-lasting use, please use a lubricant (such as water) when using diamond needle files

• Prepare Your Workspace — Ensure good lighting and a stable surface. For best results and tool longevity, prepare a small container of water or a suitable lubricant to keep the diamond file surface wet during use.
• Apply Moderate Pressure — Grip the non-slip plastic handle securely. Apply moderate, consistent pressure to the material you are working on. Avoid excessive speed or force, which can damage the diamond coating or the workpiece.
• Work in Sections — File in smooth, controlled strokes, moving the file back and forth or in a circular motion as needed. Periodically rinse the file in water to clear away debris and maintain its abrasive effectiveness.
• Clean and Store — After use, thoroughly rinse the file with water and dry it completely before storing. The included plastic pouch helps keep the files organized and protected, preventing damage to the diamond grit.

Typical situations where uxcell Round Diamond Needle Files 100mm (4-inch) 150 Grit helps — illustrative scenarios, not customer reviews.