






Milwaukee 9/64" Thunderbolt Black Oxide Drill Bit 48-89-2715
REINFORCED CORE TECHNOLOGY FOR MAXIMUM DURABILITY AND PRECISION
The Milwaukee 48-89-2715 is engineered to solve the primary failure point of standard jobber bits: core snapping under side-load pressure. By utilizing the proprietary Thunderbolt® web design, this 9/64" bit features a significantly thicker core that provides the structural integrity needed for high-torque portable drilling. The parabolic flute geometry is a critical mechanical advantage, facilitating rapid chip evacuation to prevent heat buildup and maintain the temper of the high-speed steel. For professionals drilling into curved surfaces or stainless steel, the 135° split point ensures the bit bites immediately upon contact, eliminating the need for a center punch and preventing walking for a cleaner, more efficient hole.
- / Thunderbolt® Web Design features a thicker core to protect against breakage during aggressive side-loading.
- / 135° Split Point Tip starts on contact to prevent walking and ensure precision hole placement without pre-drilling.
- / Parabolic Flute Geometry clears chips and debris rapidly to keep the bit cool and extend cutting life.
- / Black Oxide Coating provides superior lubricity and corrosion resistance for long-term jobsite reliability.
TECHNICAL SPECIFICATIONS
| Diameter | 9/64" |
| Overall Length | 2-7/8" |
| Flute Length | 1-3/4" |
| Point Angle | 135° Split Point |
| Coating | Black Oxide |
| Shank | Round |
| Material | High Speed Steel |
WHAT'S IN THE BOX
(1) 9/64" Thunderbolt® Black Oxide Drill Bit (48-89-2715)
Original: $1.49
-65%$1.49
$0.52Product Information
Product Information
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Description
REINFORCED CORE TECHNOLOGY FOR MAXIMUM DURABILITY AND PRECISION
The Milwaukee 48-89-2715 is engineered to solve the primary failure point of standard jobber bits: core snapping under side-load pressure. By utilizing the proprietary Thunderbolt® web design, this 9/64" bit features a significantly thicker core that provides the structural integrity needed for high-torque portable drilling. The parabolic flute geometry is a critical mechanical advantage, facilitating rapid chip evacuation to prevent heat buildup and maintain the temper of the high-speed steel. For professionals drilling into curved surfaces or stainless steel, the 135° split point ensures the bit bites immediately upon contact, eliminating the need for a center punch and preventing walking for a cleaner, more efficient hole.
- / Thunderbolt® Web Design features a thicker core to protect against breakage during aggressive side-loading.
- / 135° Split Point Tip starts on contact to prevent walking and ensure precision hole placement without pre-drilling.
- / Parabolic Flute Geometry clears chips and debris rapidly to keep the bit cool and extend cutting life.
- / Black Oxide Coating provides superior lubricity and corrosion resistance for long-term jobsite reliability.
TECHNICAL SPECIFICATIONS
| Diameter | 9/64" |
| Overall Length | 2-7/8" |
| Flute Length | 1-3/4" |
| Point Angle | 135° Split Point |
| Coating | Black Oxide |
| Shank | Round |
| Material | High Speed Steel |
WHAT'S IN THE BOX
(1) 9/64" Thunderbolt® Black Oxide Drill Bit (48-89-2715)













