The Milwaukee 48-89-2737 Thunderbolt Black Oxide Drill Bit is a jobber-length drill bit engineered for durability and precision in demanding applications. Designed for general-purpose drilling in metal, wood, and PVC, this bit combines a reinforced core with advanced flute geometry to deliver fast, accurate results with minimal effort. The black oxide coating provides corrosion resistance for extended life.
The Thunderbolt web features a thicker core than standard drill bits, providing ultimate strength and protection against side-load breakage during high-torque drilling. Whether you’re working on curved surfaces or tough materials, this bit resists breaking and maintains performance under demanding conditions, and requires less effort to drill through its target materials.
Features and Benefits
- 135-Degree Split Point Tip: Delivers precision starts and prevents walking for fast, accurate holes with no drift.
- Parabolic Flute Design: Specially designed flute form clears chips quickly, enabling smoother drilling and faster drill times.
- Thicker Thunderbolt Core: Reinforced web structure resists breaking and protects against side-load failure during heavy-duty work.
- 3-Flat Secure-Grip Shank: The 3/8-inch shank holds the bit firmly in the drill chuck for reliable grip and reduced slipping.
- Black Oxide Coating: Provides anti-corrosive protection for extended bit life and reduced effort when drilling.
- Effective on Multiple Materials: Works on metal, wood, PVC, and curved surfaces for versatile job-site use.
Specifications
- Brand: Milwaukee
- Model: 48-89-2737
- Bit Diameter: 31/64 inch
- Overall Length: 5-7/8 inches
- Shank Diameter: 3/8 inch
- Bit Type: Jobber bit
- Flute Design: Parabolic, 3-flute
- Split Point Angle: 135 degrees
- Coating: Black oxide
