20PC THUNDERBOLT® Titanium Drill Bit Set
Features
- Titanium coated for 3x Longer life and corrosion resistance
- Thicker core resists breaking
- 3-FLAT SECURE-GRIP™ prevents bit from slipping in chuck
- Customizable accessory case is designed for use in PACKOUT™
- Parabolic flute form clears chips fast
- THUNDERBOLT® bits feature 135° split point tip and thicker core for durability and long life
- Designed for use with Drill Drivers
- Ideal for Metal, Wood, & Plastics
- 135° split point tip for precision starts and faster holes
Manufacturer Resources
Product Specs
- Product Type:
- Drill Bit Set
- Department:
- Electrical
- Product Subgroup:
- Drill & Driver Bits
- Bit Type:
- Twist
- Product Group:
- Power Tools & Accessories
Milwaukee 48-89-1105 – Frequently Asked Questions
1) What materials can the Milwaukee 48-89-1105 Thunderbolt titanium drill bit set drill?
The 20-piece Thunderbolt titanium set is made for metal, wood, and plastics. The 135 degree split point tip starts on its own without a center punch walking the bit, and the parabolic flute clears chips quickly when you are drilling steel or deep holes in wood. It is a general-purpose twist bit set, not a masonry set, so concrete and block need a carbide-tipped bit instead.
2) Will the Milwaukee 48-89-1105 titanium bits drill into concrete or block?
No. The Milwaukee 48-89-1105 20PC THUNDERBOLT titanium set is built for metal, wood, and plastics, with a 135 degree split point tip and titanium coating for longer life in those materials. For anchoring into concrete, block, or brick you want a carbide-tipped rotary/percussion bit such as the Minerallac 59736 Relton 1/2 inch x 6 inch, whose carbide tip is made to take hammer action that would destroy a twist bit.
3) What should I use instead of a titanium twist bit for drilling tile, stone, or glass?
Titanium-coated twist bits like the Milwaukee 48-89-1105 THUNDERBOLT set cut by shearing metal, wood, and plastic and are not intended for hard brittle material. For tile, stone, and similar abrasive work the Lenox 12111-10DGHS is a 5/8 inch diamond grit bit, which grinds rather than cuts and is the right tool for that hole.
4) Will these Milwaukee Thunderbolt bits slip in a keyless chuck?
Each bit has a 3-Flat Secure-Grip shank, which gives the chuck jaws flats to bite so the bit does not spin loose under torque. That matters most on larger diameters in steel where a round shank tends to slip in a keyless drill chuck. Milwaukee lists the set for use with drill drivers.
5) Does the Milwaukee 48-89-1105 drill bit set case fit in a PACKOUT box?
Yes. The set ships in a customizable accessory case designed for use in the Milwaukee PACKOUT system, so it drops into a PACKOUT organizer or tool box rather than riding loose in a van drawer. The case is customizable, so you can pull bits out or add to it as your kit changes.
6) I need one 1/2 inch hole in a concrete wall, not a whole set. What is the alternative?
The Milwaukee 48-89-1105 is a 20-piece set of titanium twist bits sized for general metal, wood, and plastic work. For a single 1/2 inch hole in masonry, the Minerallac 59736 Relton is a single 1/2 inch x 6 inch carbide-tipped rotary/percussion bit, which gives you the one size and the 6 inch working length for a through-wall anchor.
7) Is a diamond grit bit a substitute for a titanium bit when drilling steel?
They are not interchangeable. The Lenox 12111-10DGHS is a 5/8 inch diamond grit bit, an abrasive-cutting design. For steel and other metal the Milwaukee 48-89-1105 THUNDERBOLT bits are the correct choice, with a 135 degree split point tip for precision starts, a thicker core that resists breaking, and a 3-FLAT SECURE-GRIP shank that keeps the bit from spinning in the chuck under load.
8) What does the titanium coating on the Thunderbolt bits actually do?
Milwaukee rates the titanium coating for 3x longer life plus corrosion resistance. Practically, that means the cutting edge holds up longer drilling metal and the bits do not surface rust sitting in a truck. The bits also use a thicker core, which is the part that resists snapping when the bit binds in a hole.
9) What is the Milwaukee part number to reorder this 20-piece titanium drill bit set?
Order it as Milwaukee 48-89-1105, the 20-piece Thunderbolt titanium drill bit set. That single part number covers the complete set in its case, so it is straightforward to standardize across a maintenance crew or restock multiple vans on one line item.
How fast can I get the Milwaukee 48-89-1105 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Milwaukee 48-89-1105 come with a warranty?
Absolutely. The Milwaukee 48-89-1105 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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