DeWALT DCD991B

Milwaukee Thunderbolt Black Oxide jobber length drill bits are designed for extreme durability and long life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate more→strength and protect against side load breakage. A specially designed parabolic flute form clears chips fast, while the 3-Flat Secure-Grip shank holds the bit firmly in the drill chuck. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces, Milwaukee Thunderbolt Black Oxide bits require less effort to drill through metal, wood and PVC and are highly recommended for use with portable drills.

Diablo's Demo Demon Spade Bits provide 1 of the most durable, effortless and longest lasting hole drilling solutions on the market for nail-embedded wood. The Demo-Edge dual cutting edges coupled with more→a self-feeding Dura-Tip power through nail hits for a smooth drilling experience and up to 60X longer life. An optimized curved paddle design enhances the chip evacuation process for more holes per charge. This range is Impact Strong for increased shank stability and durability in cordless and corded impact and drill drivers.

General purpose high speed steel wire gauge straight shank jobber length drill bits is constructed of M-2 high speed steel for the best combination of strength, heat resistance, and wear resistance.