Dremel's 1/4" Structured Tooth Tungsten Carbide Cutter Accessory Bit.
A high-speed cutter with teeth made of tungsten carbide, the hardest material next to diamonds. Tapered tip. Ideal for fast material removal on fiberglass, wood, plastic, epoxy, rubber, laminates, particleboard, soft metals, and ceramic wall tile. Use this bit at higher speeds for hard woods, slower speeds for metals, and very slow speeds for plastics.
One Tungsten Carbide Cutter
Cutter Diameter: 1/4" (6.4mm) Shank Diameter: 1/8" (3.2mm)