This Is Dremel's Diamond Wheel Accessory Bit.

FEATURES: A metal wheel completely coated with fine diamond particles for
            working with hard materials.
          Designed to last and not lose its shape or break.
          Provides smooth fine cuts.
          Great for cutting, sawing, carving, sharpening, and filing of hard
            materials.
          Use on wood, concrete, brick, porcelain, ceramics, tile, epoxy,
            marble.

INCLUDES: One Diamond Wheel Bit
          Mandrel #402

REQUIRES: Rotary Tool

SPECS:    Shank Diameter: 1/8"  (3.2mm)

COMMENTS: Do not use on floor tile!
          Recommended speed is 15,000 - 20,000 RPM.
                                                                      kr9/27/01
                                                                          ir/kh