Engineered for extreme durability, the Milwaukee Thunderbolt Black Oxide drill bit features a parabolic flute design to clear chips and debris rapidly. The 135° split point tip ensures a precision start without walking, making it ideal for drilling on curved surfaces and use with portable drills.

• Thunderbolt web design provides extended tool life and faster drilling speeds
• Parabolic flute geometry clears chips and debris quickly to maintain cooler operating temperatures
• Black oxide construction offers enhanced durability for heavy-duty applications
• 135° split point tip provides a precision start to prevent bit walking
• Optimized for drilling on curved surfaces and highly recommended for portable drill use