Skip to Main Content
Back to Navigation
Milwaukee

Milwaukee THUNDERBOLT 21/64 In. Titanium Drill Bit

Model #48-89-2218 Item #359424 UPC 00045242187966
Tap to view
In-store price may vary from online price. Not all products available at all stores .
Same-day pickup
Not available
Ship to store
Not available
Ship to home
Not available
Product overview
Milwaukee Thunderbolt Titanium-coated drill bits are designed for extreme durability and up to 3X longer life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side-load breakage. The titanium coating reduces heat build-up and keeps the bit sharp to extend performance. A specially designed parabolic flute form clears chips fast, while the 3-Flat Secure-Grip shank holds the bit firmly in the drill chuck. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces, Milwaukee Thunderbolt Titanium Coated bits require less effort to drill through wood, metal and PVC, and are highly recommended for use with portable drills.
  • Longer life: Titanium coating reduces heat build-up for up to 3X longer life
  • Extreme durability: Thicker web provides greater strength
  • Fast, accurate drilling: 135 degree split point tip starts on contact to prevent walking, while the parabolic flute clears chips fast
  • Corrosion resistant: Titanium coating keeps the bit sharp and provides added protection from heat build-up
Material Titanium
Length 4-5/8 In.
Individual/Set Individual
Shank Diameter 21/64 In. 3-Flat
Bit Diameter 21/64 In.
Drilling Depth 3-5/16 In.
Tip Angle 135 Degree
Brand Milwaukee
UPC 00045242187966