DEWALT Drill Bit Set, 21-Piece, 135 Degree Split Point, 31 Degree Helix, Black Oxide Coated, For Plastic, Wood and Metal (DWA1181)

• 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