Milwaukee 1/2" Thunderbolt Black Oxide Drill Bit 48-89-2848
REINFORCED THUNDERBOLT WEB FOR MAXIMUM TORSIONAL STRENGTH
The Milwaukee Thunderbolt series is engineered to solve the most common failure point in high-speed drilling: bit breakage caused by torsional stress and side-loading. By utilizing a significantly thicker core—the Thunderbolt web—this 1/2" bit maintains structural integrity under heavy feed rates where standard bits often snap. The parabolic flute geometry provides a critical mechanical advantage, ensuring rapid chip evacuation to mitigate heat buildup, which is the primary cause of edge dulling in black oxide tooling. This bit is optimized for the high-torque demands of modern cordless drills, providing a professional-grade ROI through increased durability and faster hole-making cycles.
- / Thunderbolt® Web: Reinforced core provides ultimate strength to protect against side-load breakage during heavy-duty applications.
- / 135° Split Point: Precision-ground tip starts on contact to prevent bit walking, ensuring accurate hole placement without the need for a center punch.
- / 3-Flat Secure-Grip™ Shank: Engineered with three flat sides to prevent the bit from spinning in the chuck, maximizing torque transfer and safety.
- / Parabolic Flute Form: Clears chips and debris rapidly to keep the bit cool, extending the life of the cutting edge in metal, wood, and plastic.
- / Black Oxide Coating: Provides essential lubricity and corrosion resistance for smoother drilling and long-term tool protection.
TECHNICAL SPECIFICATIONS
| Diameter | 1/2" |
| Shank Size | 3/8" Reduced |
| Shank Type | 3-Flat Secure-Grip™ |
| Overall Length | 6.0" |
| Flute Length | 4-1/2" |
| Point Angle | 135° Split Point |
| Material | Black Oxide Coated HSS |
| Application | Metal, Wood, Plastic |
WHAT'S IN THE BOX
(1) 1/2" Thunderbolt Black Oxide Drill Bit (48-89-2848)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
REINFORCED THUNDERBOLT WEB FOR MAXIMUM TORSIONAL STRENGTH
The Milwaukee Thunderbolt series is engineered to solve the most common failure point in high-speed drilling: bit breakage caused by torsional stress and side-loading. By utilizing a significantly thicker core—the Thunderbolt web—this 1/2" bit maintains structural integrity under heavy feed rates where standard bits often snap. The parabolic flute geometry provides a critical mechanical advantage, ensuring rapid chip evacuation to mitigate heat buildup, which is the primary cause of edge dulling in black oxide tooling. This bit is optimized for the high-torque demands of modern cordless drills, providing a professional-grade ROI through increased durability and faster hole-making cycles.
- / Thunderbolt® Web: Reinforced core provides ultimate strength to protect against side-load breakage during heavy-duty applications.
- / 135° Split Point: Precision-ground tip starts on contact to prevent bit walking, ensuring accurate hole placement without the need for a center punch.
- / 3-Flat Secure-Grip™ Shank: Engineered with three flat sides to prevent the bit from spinning in the chuck, maximizing torque transfer and safety.
- / Parabolic Flute Form: Clears chips and debris rapidly to keep the bit cool, extending the life of the cutting edge in metal, wood, and plastic.
- / Black Oxide Coating: Provides essential lubricity and corrosion resistance for smoother drilling and long-term tool protection.
TECHNICAL SPECIFICATIONS
| Diameter | 1/2" |
| Shank Size | 3/8" Reduced |
| Shank Type | 3-Flat Secure-Grip™ |
| Overall Length | 6.0" |
| Flute Length | 4-1/2" |
| Point Angle | 135° Split Point |
| Material | Black Oxide Coated HSS |
| Application | Metal, Wood, Plastic |
WHAT'S IN THE BOX
(1) 1/2" Thunderbolt Black Oxide Drill Bit (48-89-2848)
