<p>Black oxide coated for greater wear resistance; split point drills on contact and prevents walking. Parabolic flute design improves chip ejection in metal and wood drilling applications. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute.</p><ul><li>TWIST DRILL BITS</li><li>Dia.x OA Lgth In=1/2x12</li><li>STRAIGHT SHANK</li><li>BLACK OXIDE-135 DEGREE POINT</li></ul>
Black oxide coated for greater wear resistance; split point drills on contact and prevents walking. Parabolic flute design improves chip ejection in metal and wood drilling applications. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute.
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