The DEWALT DW1620 9/16-in 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###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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