Performance Tool W50036 120V Electric Etching Engraving Pen With Adjustment Dial, Perfect Accessory for Crafting, Engrave Carve Tool Steel Jewellery Engraver Pen 9 position depth adjustment dial for fine lines to deep grooves Long lasting tungsten carbide tipped steel engraving bit Comfortable non-slip grip 6 ft. power cord Ideal for decorative engraving or adding security by personalizing your valuables, engraves on metal, plastic, glass, ceramics, wood & even leather