SNJ-3681 Mini Engraving Pen Wireless Polishing Electric Grinder, Style: Silver+Grinding Head+Cutt...

1. Power: 10W
2. Battery voltage: 4.2V
3. Battery capacity: 300mAh
4. Charging port: Type-C/USB-C
5. Speed: 5000-10000-18000
6. Clamping range: 2.35mm
7. Collet depth: 25mm
8. Weight: about 40g
9. Size: about 12 x 1.6cm

Features:
1. Using noise reduction material, with bass motor, low noise operation
2. Tight copper chuck, clamping firm and not easy to move, rotating spindle connection tight, high concentricity
3. Wide range of applications, mold polishing and grinding, crafts trimming and shaping, die casting deburring, jade / stone / wood and bamboo carving
4. High-speed rotation of pure copper motor, continuous and stable output, double-layer protection
5. Multiple protection, temperature control / charging / overvoltage protection, safe and durable
6. Wireless operation, lightweight body, easy to use