Thunderbolt Black Oxide Coated Twist Drill Bit Sets, 1/16"-3/8" Cut Dia, 15/Set
Black oxide coating provides lubricity and resists corrosion of the bit|Three-Flat Secure-Grip shank holds the bit firmly in the drill chuck|135 split point tip starts on contact to prevent walking, while the parabolic flute clears chips fast|Thicker web provides greater strength and longer life|Corrosion-resistant
135 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
Corrosion-resistant
Thicker web provides greater strength and longer life
Three-Flat Secure-Grip shank holds the bit firmly in the drill chuck