Cylindrical shaped bit. One of Dremel's toughest engraving/carving bits.

• Shapes, smooths or grinds especially hard materials including: hardened steel, stainless steel, cast iron, nonferrous metals, fired ceramics, plastics and hard woods
• A high-speed bit made of tungsten carbide, the hardest material next to diamonds
• Use higher speeds for hard woods, slower speeds for metals and very slow speeds for plastics