ITEM NAME:DIY Electric Engraving Engraver Pen Carve Tool for Jewelry Metal Glass with E8U9 DIY Electric Engraving Engraver Pen Carve Tool for Jewelry Metal Glass with E8U9 1.100% Brand New 2.Easy to use, compact and easy to carry. 3.Change the grinding head tool for easy replacement of the pen tip. 4.Diamond grinding head, high strength, super wear resistant and impact resistant. 5.Great DIY tool. It is easy to make marks and can be engraved on the surface of metal stone, glass and wood. Rated voltage: 1V Spindle speed: 12000rpm Color:Blue Material: aluminum + diamond Battery: 2 x AAA batteries Size(approx.): 160 x 14 mm Package Contents: 1 * Electric engraving pen 1 * Small wrench 1 * Pen head 2 * AAA batteries