9/64" Thunderbolt® Black Oxide Drill Bit (12 PK)
9/64" Thunderbolt® Black Oxide Drill Bit (12 PK)
48-89-2825
Milwaukee 48-89-2825 — Product Description
The Milwaukee 48-89-2825 is a 9/64" Thunderbolt® black oxide drill bit set (12-pack) designed for general-purpose drilling in metal, wood, and plastic.
It’s part of Milwaukee’s Thunderbolt jobber-length series, built for durability, chip removal, and everyday drilling performance.
Key Features
135° split point tip – starts on contact and reduces walking for accurate holes
Thunderbolt reinforced web – thicker core for added strength and reduced breakage
Black oxide coating – reduces friction and improves corrosion resistance
Parabolic flute design – clears chips quickly for cooler, faster drilling
3-flat Secure-Grip shank – helps prevent slipping in the drill chuck
Specs
Size: 9/64"
Quantity: 12 bits per pack
Material: High-speed steel (HSS)
Finish: Black oxide
Overall length: ~2-7/8" (jobber length)
Flute length: ~1-3/4"
Use: Metal, wood, PVC, plastics
Best Uses
Pilot holes for screws and fasteners
Light metal drilling
Woodworking and trim work
General maintenance and shop use
Precision small-hole drilling
Bottom Line
The 48-89-2825 is a small-diameter, everyday Thunderbolt drill bit set—built for precision and general use, not heavy structural drilling or specialty applications.

$1.11