About the product
- DEWALT 21-pack black oxide twist drill bit set is ideal for general-purpose drilling materials like metal, hardwood, softwood, PVC and fiberglass
- Parabolic flute design increases chip ejection in metal and wood drilling applications
- Black oxide coating helps resist corrosion and increase durability, so your drill bits last longer
- 135 Split-point tips drill on contact and prevents walking on the hard surface you re working on
- 31 Helix reduces over aggressiveness of true parabolic flute, making it ideal for drilling deep holes
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