Our micro-sander features a reciprocating mechanism that ensures a more uniform and stable sanding process. This design allows the sanding pen to deliver consistent performance when working on detailed tasks, resulting in a smoother and more even finish. This USB fast-charging electric sanding pen comes with 8 high-quality sanding heads in various shapes and sizes for easy identification. A variety of sanding head types and precision levels meet the needs of DIY craft enthusiasts. The versatile detail sander offers three-speed settings: 2800, 3100, and 3600 strokes per minute. With a quick charging time of approximately 20 minutes, it provides efficient and continuous operation. An intelligent overload protection chip safeguards the motor by automatically stopping the tool under excessive load, helping prevent damage and extending the tool's lifespan. Compact and lightweight, this pen is ideal for use in tight spaces, small grinding tasks, polishing, and DIY crafts. The sanding heads are easy to replace, allowing quick transitions between tasks. Suitable for detailed work on wood, plastic, and metal materials. Product Name: Cordless Sanding Pen Reciprocating Stroke: 2.5 ± 0.1 mm Reciprocating Horizontal Deviation: 0.1 mm Battery Capacity: 280 mAh Left and Right Swing Deviation: 0.1 mm Maximum Load Output Current: 750 mA Input Voltage: 5V Maximum No-Load Output Current: 250 mA Output Voltage: 3.7V Rated Power: 2.8W Input Current: 1A Charging Time: 20 minutes No-Load Continuous Use Time: 100 minutes Model: ES-A Sanding Speed: 2800 / 3100 / 3600 strokes per minute Application: Ideal for small sanding, polishing, and DIY crafts Color: As Shown Material: Plastic Package Contents: 1 x Sander Body 8 x Sanding Heads 97 pcs x Flat Self-Adhesive Sandpaper (180/280/400/600/800/1000 grit) 47 pcs x Round Self-Adhesive Sandpaper (180/280/400/600/800/1000 grit) 1 x USB Power Cable 1 x Pair of Cut-Resistant Gloves 1 x Storage Box Note: The package includes only the items listed above. Other accessories or products are not included. Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: ±1–3 cm.