- Rotary drill bits: versatile metal cutting bits suitable for use on metal, wood, stone, porcelain, sheet metal, plastic, fiberglass and more. Designed for reliable cutting with standard rotary drills. - Rotary cutters: solid carbon steel router bits that are robust and built for long service life during rotary cutting tasks. Durable, with strong performance for routing work. - Cutting burr bits: a 5-piece set of metal cutting burrs made from high carbon steel. Ideal for deburring, shaping, smoothing and finishing metal surfaces. - Small metal router bits: compact pieces included for detail work in tight spaces and on smaller projects. Use scenarios - Deburr and finish metal edges after cutting or machining to remove sharp edges and improve fit. - Route and profile wood, plastic or fiberglass edges and contours with reliable control. - Perform precise detailing and shaping on metal parts, prototypes or repairs in confined areas.