Tired of drill bits that dull quickly and snap under the slightest
pressure? Then step up to DEWALT Black Oxide Drill Bits. These industrial-grade
twist-drill bits are cut from super-hard, resilient black oxide for the ultimate
in durability and strength. Each bit features a 135-degree split point for
enhanced hole-drilling performance, including quick starts and clean, burr-free
holes. For use in wood, metal, plastics and fiberglass.
14-piece black oxide drill bit set
135-degree split point drills on contact and prevents walking
Parabolic flute design improves chip ejection in metal and wood drilling
applications
Black oxide-coated for greater wear resistance
Helix is 31 degrees, which minimizes the over- aggressiveness of a true
parabolic flute