Description
- Made of M35 Cobalt (8% Cobalt) high speed steel
- 1/4" (6.35mm) Hex Shank
- Each step is clearly marked with the diameter
- Suitable for cut holes in a variety of materials including stainless steel, CR-NI, metal, brass, wood, plastic, aluminum copper, gypsum board, metal material, fiberglass, and PVC etc, convenient to storage in bag, car, or at home. Ideal for professional and home use.