The Milwaukee Thunderbolt Black Oxide Drill Bit is a durable jobber-length bit designed for general-purpose drilling in wood, metal, and PVC. Its black oxide finish adds lubricity and provides corrosion resistance, making it ideal for both cordless and corded drill applications. The 135-degree split point tip delivers precision starts without bit walking, while the thicker Thunderbolt web core resists side-load breakage better than standard drill bits, ensuring longer bit life and reliable performance.
Whether you’re drilling into wood cabinets, metal brackets, or other materials, this bit performs exceptionally well with portable drills and requires less effort to penetrate tough surfaces. The parabolic flute design clears chips fast, and the 3-flat Secure-Grip shank holds the bit firmly in the chuck for dependable drilling on curved surfaces.
Features and Benefits
- 135-Degree Split Point Tip: Delivers a precision start with no walking, ensuring fast and accurate holes.
- Thicker Thunderbolt Core: Provides ultimate strength and protects against side-load breakage for longer bit life.
- Black Oxide Finish: Adds lubricity and is anti-corrosive, reducing the need for additional lubrication.
- Parabolic Flute Design: Clears chips fast for efficient drilling.
- 3-Flat Secure-Grip Shank: Holds the bit firmly in the drill chuck for reliable performance.
- Cordless Drill Compatible: Works well with portable and cordless drills, requiring less effort to drill through materials.
Specifications
- Brand: Milwaukee
- Model: 48-89-2738
- Diameter: 1/2 in
- Overall Length: 6 in
- Shank Diameter: 3/8 in
- Bit Type: Jobber bit, 3-flute
- Flute Style: Parabolic flute
- Finish: Black oxide
- Tip Style: 135-degree split point
