13/64" Thunderbolt® Black Oxide Drill Bit (12 PK)
13/64" Thunderbolt® Black Oxide Drill Bit (12 PK)
48-89-2829
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$1.44
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$1.44
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The Milwaukee 48-89-2829 is a 13/64" Thunderbolt® black oxide drill bit set (12-pack) built for general-purpose drilling in metal, wood, and plastic.
This sits right in the mid-range of Milwaukee’s Thunderbolt jobber-length series, offering a balance between pilot-hole precision and medium fastener drilling.
Key Features
- 135° split point tip – starts on contact and prevents walking for accurate holes
- Thunderbolt reinforced web – thicker core increases strength and reduces breakage
- Black oxide coating – reduces friction and resists corrosion
- Parabolic flute design – clears chips quickly for cooler, faster drilling
- 3-flat Secure-Grip shank – prevents slipping in the chuck
These features are standard across Thunderbolt bits and are designed to improve durability and drilling efficiency across materials.
Specs
- Size: 13/64 in (0.2031")
- Quantity: 12 bits per pack
- Material: High-speed steel (HSS)
- Finish: Black oxide
- Overall length: ~3-5/8 in
- Flute length: ~2-7/16 in
- Use: Metal, wood, PVC, plastics
Best Uses
- Pilot holes for medium fasteners and bolts
- General construction and framing
- Light-to-medium metal drilling
- Woodworking and shop work
- Maintenance and repair tasks
Bottom Line
The 48-89-2829 is a mid-size, everyday Thunderbolt drill bit set—larger than small pilot bits but still squarely in the general-purpose category. It’s designed for strength, consistency, and repeated use, not specialty applications like long-reach aircraft bits or large S&D drilling.

13/64" Thunderbolt® Black Oxide Drill Bit (12 PK)
$1.44