Personalize metal, glass, ceramics, plastics, hard rubber, wood and stone with the IDEAL Engraver Tool. It comes supplied with a carbide point tip and a diamond point is available for engraving extra-hard materials. A stroke-adjustment dial regulates the engraving depth from fine lines to deep grooves. It operates at 7,200 strokes per minute and features a unique design that reduces bouncing to provide smooth, easy writing.