... metal, chinaware, marble, glass, jade, etc DescriptionThe engraving pen is a new type of electronic engraving instrument. It is ... surface of almost all the hard materials, such as metal. ceramic, glass, plastic, marble and timber. It not only ... .1AOutput power24WWriting deepness0.1-0.5mmNibΦ3mm(hard alloy)Dimension150 x 65 x 40mmNet weight250gPacking weight300g electric engraving pen for ceramic