Mini Electric Grinder USB Engraving Pen Grinding Milling Rotary Drill Trimming Polishing Drilling Cu

Package Included: 1 x Electric Mill Pen 1 x USB Cable 6 x Red Grinder Sheet 6 x Silver Grinder Drill? ? Specifications: Color: Black Dimension:155mm (Length) x 27mm (Diameter) Type: USB Port or Powerbank ( > 1.5A) Input: AC 100-240V 50/60Hz Output: 9V /1000mA Walltage: 9W Max Speed: 20000rpm ? Features: - It is necessary for DIY carving and grinding - Using the principle of engineering design, fashion modeling, feel is good - Light Weight and Portable - Easy operation,adjustable speed - Perfect for professional wooden working or home use ?