Product Description
Milwaukee 9/64 in. Thunderbolt Titanium Coated Drill Bit
Model Number: 48-89-2206
The Milwaukee 48-89-2206 is a 9/64 in. Thunderbolt Titanium drill bit for drilling through wood, metal, and plastic in general-purpose applications throughout construction, maintenance, and DIY work. The Thunderbolt series features a titanium nitride (TiN) coating applied over the high-speed steel drill body — TiN provides increased surface hardness and reduced friction at the cutting edge compared to uncoated HSS drill bits, extending bit life in metal drilling applications where heat generation and cutting edge wear are the primary service life limiting factors. The 9/64 in. diameter is a common pilot hole size for medium screws and bolts, wood joint pilot holes for #8 and #10 screws, precision clearance holes for specific hardware, and precision drilling in woodworking where the exact 9/64 in. bore is specified for the fastener or fitting being used.
The Thunderbolt bit's reduced-web design removes steel at the bit's center section to lower the drilling thrust required for the bit to advance through the material, making it easier to maintain controlled drilling speed especially in harder materials where high thrust requirements cause drill speed reduction and motor loading. The 135° split point is appropriate for the Thunderbolt's general-purpose application range — the split point self-centers on most surfaces and initiates cutting immediately without the bit walking that conventional 118° points experience on metal and smooth surfaces. For production drilling in metal where bit life is the primary specification, Milwaukee's cobalt bit series and specialty metal drilling bits provide premium life and performance beyond what the Thunderbolt TiN coating achieves in sustained metal cutting.
See Milwaukee's complete Thunderbolt bit lineup for all available diameters and for the full range of specialty bit specifications including cobalt, black oxide, and carbide-tipped options for every drilling application.
Features
- Titanium nitride (TiN) coating for extended life vs. uncoated HSS in metal drilling
- 9/64 in. for screw pilot holes, hardware clearance, and general precision drilling
- Reduced-web design lowers thrust requirement for easier drilling in harder materials
- 135° split point for self-centering start without walking on metal surfaces
- For wood, metal, and plastic general-purpose drilling
Specifications
- Diameter: 9/64 in.
- Coating: Titanium Nitride (TiN)
- Point: 135° Split Point
- Application: Wood, Metal, Plastic — General Purpose
Includes
- (1) Milwaukee 48-89-2206 9/64 in. Thunderbolt Titanium Drill Bit
