Engrave, decorate, or personalize a wide variety of materials--from metal to plastic to wood and leather. Included replaceable carbide engraving point, and variable stroke control. Powered by a 7,200 spm, 115-volt motor for reliable performance, personalize your valuables or decorate metal, glass, and stone for a unique touch. Also for ceramics, crafts, and jewelry making. Mark your valuables to help protect them from theft replaceable carbide engraving point, and 5 speed variable stroke control. replacement diamond & carbide tips available separately.