The IDEAL Electrical 11-113 Electric Engraving Tool enables users to personalize metal, glass, ceramics, plastics, hard rubber, wood and stone. It is supplied with a carbide point tip, while a diamond point is available separately for engraving extra-hard materials. A stroke-adjustment dial regulates the engraving depth from fine lines to deep grooves. The tool operates at 7,200 strokes per minute and features a unique design that reduces bouncing to provide smooth, easy writing.