20PC THUNDERBOLT® Titanium Drill Bit Set

The Milwaukee 48-89-1105 is a 20-piece THUNDERBOLT® titanium drill bit set built for general-purpose drilling in metal, wood, and plastic, offering a step up in size range and quantity from smaller kits.

Key Features

• Titanium Coating (TiN) – Reduces heat buildup and extends bit life up to 3× longer than black oxide bits
• 135° Split Point Tip – Starts on contact and minimizes walking for cleaner, more accurate holes
• Thicker Core (Thunderbolt Web) – Increases strength and resists breakage under side load
• Parabolic Flute Design – Clears chips quickly to keep bits cooler and drilling efficient
• 3-Flat Secure-Grip™ Shank – Reduces slipping in the chuck
• PACKOUT™-Compatible Case – Durable, organized storage system

What’s Included

• 20 drill bits ranging roughly from 1/16" to 1/2"
• Includes duplicate smaller sizes (like 1/16", 1/8", etc.) for high-wear replacements

Best Uses

• Drilling steel and light metals
• Wood and plastic applications
• General construction, maintenance, and DIY work
• Shop use where you need backup sizes that wear out faster