USB Wireless Engraver: These engraving tools come with a lithium battery that can be charged via the USB interface. When fully charged, wireless use can last up to 30 minutes. Easily help you in a better engraving process. $ The metal engraving pen isequipped with an excellent motor, and the power is up to 25W when working. 3-speed adjustable speed 5000-25000 rpm, suitable for different occasions. The lowest speed lets you sand your nails safely, and the highest speed can also be used for metalengraving. Variety of Grinding Heads: These metal engraving machine kits include rotary drills, drills and saw blades, all of which are sufficient for engraving, engraving, sanding, polishing, etching, milling, grinding, drilling and cutting. START THE ART OF ENGRAVING NOW: These portable and compact etching pens are easy to carry with you, allowing you to enjoy easy time making diamond jewelry by hand. It can work on metal, glass, ceramics, leather, wood, jewelry, stone or statues. Best for Beginners: Our metal engraving tools are easy to operate and especially suitable for beginners. Products from LUOLV's store