Milwaukee 25/64" Thunderbolt Black Oxide Drill Bit (6 PK) 48-89-2841
REINFORCED CORE GEOMETRY FOR AGGRESSIVE METAL DRILLING
The Milwaukee Thunderbolt series represents a significant mechanical upgrade over standard jobber bits by addressing the primary cause of bit failure: core snapping. By utilizing the Thunderbolt web—a thicker, tapered core—these bits provide superior structural integrity against the side-load pressures often encountered when drilling through thick-gauge steel or when working at awkward angles with portable drills. The 135-degree split point geometry is critical for professional applications, as it allows the bit to engage the material immediately upon contact, eliminating the "walking" that can mar finished surfaces or ruin precision layouts. This 6-pack ensures high-volume users maintain consistent productivity with bits engineered for rapid chip evacuation and thermal management.
- / Thunderbolt® Web: Engineered with a thicker core to provide ultimate strength and protect against side-load breakage in demanding materials.
- / 135° Split Point: Precision-ground tip starts on contact to prevent walking, ensuring fast and accurate hole placement without the need for a center punch.
- / Parabolic Flute Form: Specifically designed to clear chips and debris rapidly, keeping the bit cool and extending the service life of the cutting edge.
- / 3-Flat Secure-Grip™ Shank: Features three flat sides to prevent the bit from spinning in the drill chuck, maximizing torque transfer during high-load drilling.
- / Black Oxide Coating: Provides essential lubricity to reduce friction and heat while offering superior corrosion resistance on the jobsite.
TECHNICAL SPECIFICATIONS
| Diameter | 25/64" |
| Shank Type | 3-Flat Secure-Grip™ (Reduced to 3/8") |
| Overall Length | 5-1/8" |
| Flute Length | 3-3/4" |
| Point Angle | 135° Split Point |
| Material | High Speed Steel with Black Oxide Coating |
| Application | Metal, Wood, Plastic |
| Pack Quantity | 6 |
WHAT'S IN THE BOX
(6) 25/64" Thunderbolt® Black Oxide Drill Bits (48-89-2841)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
REINFORCED CORE GEOMETRY FOR AGGRESSIVE METAL DRILLING
The Milwaukee Thunderbolt series represents a significant mechanical upgrade over standard jobber bits by addressing the primary cause of bit failure: core snapping. By utilizing the Thunderbolt web—a thicker, tapered core—these bits provide superior structural integrity against the side-load pressures often encountered when drilling through thick-gauge steel or when working at awkward angles with portable drills. The 135-degree split point geometry is critical for professional applications, as it allows the bit to engage the material immediately upon contact, eliminating the "walking" that can mar finished surfaces or ruin precision layouts. This 6-pack ensures high-volume users maintain consistent productivity with bits engineered for rapid chip evacuation and thermal management.
- / Thunderbolt® Web: Engineered with a thicker core to provide ultimate strength and protect against side-load breakage in demanding materials.
- / 135° Split Point: Precision-ground tip starts on contact to prevent walking, ensuring fast and accurate hole placement without the need for a center punch.
- / Parabolic Flute Form: Specifically designed to clear chips and debris rapidly, keeping the bit cool and extending the service life of the cutting edge.
- / 3-Flat Secure-Grip™ Shank: Features three flat sides to prevent the bit from spinning in the drill chuck, maximizing torque transfer during high-load drilling.
- / Black Oxide Coating: Provides essential lubricity to reduce friction and heat while offering superior corrosion resistance on the jobsite.
TECHNICAL SPECIFICATIONS
| Diameter | 25/64" |
| Shank Type | 3-Flat Secure-Grip™ (Reduced to 3/8") |
| Overall Length | 5-1/8" |
| Flute Length | 3-3/4" |
| Point Angle | 135° Split Point |
| Material | High Speed Steel with Black Oxide Coating |
| Application | Metal, Wood, Plastic |
| Pack Quantity | 6 |
WHAT'S IN THE BOX
(6) 25/64" Thunderbolt® Black Oxide Drill Bits (48-89-2841)
