Wireless pen with micrograver pen Wireless Engraving Electric Pen, Mini Manicure Kit, Hand Carved Wood Carving Kit, Complete Accessories USB charging, low noise 3 speed options, the body is made of alloy, and heat dissipation is good, making DIY art creation easy Jewelry pickling tools have intelligent overload protection, no need to worry about motor damage Small and portable, the whole machine weighs only 40g The mini engraving machine has a built-in power button, so you don't have to worry about accidentally touching the switch and stopping work Versatile precision control: can be used for engraving, sharpening, grinding or polishing wood, plastic, tile, glass, ceramic, stone, metal and more Specification: Material: plastic, alloy Size (DxS): Approx. Drill Bit: 1mm/0.04 inch, 1.5mm/0.06 inch Disc: 22 mm/0.87 inch, 25 mm/0.98 inch, 32 mm/1.26 inch Grip post: 2.35mm/0.09 inch Power: 10W Specification: Material: plastic, alloy Size (DxS): Approx. Drill Bit: 1mm/0.04 inch, 1.5mm/0.06 inch Disc: 22 mm/0.87 inch, 25 mm/0.98 inch, 32 mm/1.26 inch Grip post: 2.35mm/0.09 inch Power: 10W