With an aggressive spur for fast material penetration, DEWALT Self-Feed Bits feature optimized cutting geometry for long life and an open-tooth design for easy re-sharpening. A 7/16-inch ball groove shank offers quick-change applications of the drill bits.
The DEWALT DW 1641 self feed bit competitively supplies deep, speedy incisions, producing the basic holes you need in a timely manner. The two-cutter construction is useful to a wide range of bits, outperforming the greater than three inch industry standard. Improved design includes new flats on the shanks so that shank won't turn while in the chuck.