Cordless electric engraving pen, mini nail art set, hand-carved wood carving kit with complete accessories. USB charging, quiet operation. Powered by 300mAh lithium battery, 3 speed , the body is made of alloy material, which has good heat dissipation, making your artistic easy. The jewelry tool has smart overload protection, so you 't have to worry about engine damage. Small and portable, the whole machine weighs only 40g. The mini engraving machine has a built-in power switch design, so there is no need to worry about accidentally touching the switch and stopping the operation. Versatile Precise Control: Can be used to engrave, sharpen, grind or polish wood, plastic, tile, glass, ceramic, stone, metal and more. Colour: Silver Material: Metal Package Contents: 1 * Engraving Pen 1 * Data Cable 1 * T-Shape Grinding Head 2 * 2.35 Bar 30 * 2.35 Drill 2 * Drill Bit (1.0mm, 1.5mm) 3 * Sanding Discs (16mm, 20mm, 25mm) 3 * Stainless Steel Cutting Discs (22mm, 25mm, 32mm) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.