The 1/8" x 12" black oxide drill bit has a helix of 31 degrees which minimizes the over aggressiveness of a true parabolic flute. With a black oxide coating and a split point, this is a drill bit with great wear resistance that won't walk across your project.
Parabolic flute design improves chip ejection in metal and wood drilling applications
Black oxide coated for greater wear resistance
135 Degree split point drills on contact and prevents walking
Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute
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