
Milwaukee 9/64" Thunderbolt Black Oxide Drill Bit 48-89-2825
MAXIMUM CORE STRENGTH FOR HIGH-TORQUE DRILLING APPLICATIONS
Engineered for the professional who demands more than a standard twist bit, the Milwaukee Thunderbolt® 9/64" Black Oxide Drill Bit is built to withstand the rigors of high-torque drilling. The standout feature is the proprietary Thunderbolt web, which utilizes a significantly thicker core to provide superior structural integrity against side-load breakage—a common failure point in deep-hole applications. By combining a parabolic flute design for rapid chip evacuation with a 135-degree split point, this bit ensures immediate engagement without walking, maximizing efficiency and extending the service life of your cordless drill's motor through reduced friction and heat buildup.
- / Thunderbolt® Web Design: Thicker core provides ultimate strength and protects against side-load breakage during heavy-duty use.
- / 135° Split Point: Precision start tip begins cutting on contact to prevent bit walking, ensuring accurate hole placement on curved or flat surfaces.
- / Parabolic Flute Form: Clears chips and debris faster to keep the bit cool and maintain cutting speed throughout the bore.
- / 3-Flat Secure-Grip Shank: Prevents the bit from slipping in the chuck, delivering maximum torque transfer to the cutting edge.
TECHNICAL SPECIFICATIONS
| Diameter | 9/64" |
| Shank Size | 3/8" Reduced |
| Shank Type | 3-Flat Secure-Grip |
| Coating | Black Oxide |
| Point Angle | 135° Split Point |
| Length | Jobber (2-7/8") |
| Flute Length | 1-3/4" |
WHAT'S IN THE BOX
(1) 9/64" Thunderbolt® Black Oxide Drill Bit (48-89-2825)
Original: $1.29
-65%$1.29
$0.45Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
MAXIMUM CORE STRENGTH FOR HIGH-TORQUE DRILLING APPLICATIONS
Engineered for the professional who demands more than a standard twist bit, the Milwaukee Thunderbolt® 9/64" Black Oxide Drill Bit is built to withstand the rigors of high-torque drilling. The standout feature is the proprietary Thunderbolt web, which utilizes a significantly thicker core to provide superior structural integrity against side-load breakage—a common failure point in deep-hole applications. By combining a parabolic flute design for rapid chip evacuation with a 135-degree split point, this bit ensures immediate engagement without walking, maximizing efficiency and extending the service life of your cordless drill's motor through reduced friction and heat buildup.
- / Thunderbolt® Web Design: Thicker core provides ultimate strength and protects against side-load breakage during heavy-duty use.
- / 135° Split Point: Precision start tip begins cutting on contact to prevent bit walking, ensuring accurate hole placement on curved or flat surfaces.
- / Parabolic Flute Form: Clears chips and debris faster to keep the bit cool and maintain cutting speed throughout the bore.
- / 3-Flat Secure-Grip Shank: Prevents the bit from slipping in the chuck, delivering maximum torque transfer to the cutting edge.
TECHNICAL SPECIFICATIONS
| Diameter | 9/64" |
| Shank Size | 3/8" Reduced |
| Shank Type | 3-Flat Secure-Grip |
| Coating | Black Oxide |
| Point Angle | 135° Split Point |
| Length | Jobber (2-7/8") |
| Flute Length | 1-3/4" |
WHAT'S IN THE BOX
(1) 9/64" Thunderbolt® Black Oxide Drill Bit (48-89-2825)













