The Milwaukee Thunderbolt black oxide drill bit is a jobber-length bit engineered for extreme durability and long life in wood, metal, and PVC. Whether you’re a professional contractor or a homeowner tackling a weekend project, this versatile drill bit delivers precision and reliability for everyday drilling tasks.
The Thunderbolt design features a thicker core than standard drill bits, providing ultimate strength and protection against side-load breakage during demanding applications. The specially designed parabolic flute form clears chips quickly for faster drilling and reduced effort, while the 135-degree split point tip delivers a precision start and prevents bit walking. The 3-flat Secure-Grip shank holds the bit firmly in the drill chuck, ensuring stability and accuracy throughout the hole-drilling process.
Features and Benefits
- Thicker Core Design: Resists breaking and protects against side-load damage for extended bit life.
- Parabolic Flute Form: Clears chips fast and reduces drilling effort through metal, wood, and PVC.
- 135-Degree Split Point Tip: Delivers fast, precise starts with no walking or wandering.
- 3-Flat Secure-Grip Shank: Holds firmly in the drill chuck for improved accuracy and reduced vibration.
- Black Oxide Coating: Provides durability and corrosion resistance.
- Jobber Length: Versatile size suitable for general-purpose drilling applications.
Specifications
- Brand: Milwaukee
- Model: 48-89-2722
- Bit Diameter: 1/4 in
- Overall Length: 4 in
- Shank Diameter: 1/4 in
- Type: Jobber bit, 3-flute
- Flute Design: Parabolic
- Point Angle: 135 degrees split point
- Material/Coating: Black oxide
