DEWALT DW1612 Drill Bit, 7/16 in Dia, 12 in OAL, Spiral Flute, 7/16 in Dia Shank, Round Shank

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 deg which minimizes the over aggressiveness of a true parabolic flute. Features: - 135 deg split provides greater durability to reduce breaking - Black oxide coating prevents rust - Tapered web eliminates the frustration of bit spinning in the chuck - Patented core diameter reduces breakage - Size markings located above the shank