Black Oxide Bit Set 21pc

DRILL BITS
*Sub Brand: THUNDERBOLT
*Material: Black Oxide
*Product Type: Drill Bit Set
*Number in Package: 21 pc.
*Usage: Metal, Wood and Plastic
*Shank Diameter: 3/8 in.
*Packaging Type: Clamshell
*Shank Type: 3-Flat Shank
*Finish: Black Oxide
*Extreme durability: Thicker web provides greater strength and longer life
*135 degree split point tip starts on contact to prevent walking, while the parabolic flute clears chips fast
*Black oxide coating provides lubricity and resists corrosion of the bit
*3-Flat Secure-Grip shank holds the bit firmly in the drill chuck for reduced slipping