Milwaukee THUNDERBOLT 21PC Black Oxide Drill Bit Set 48-89-2801

REINFORCED CORE DRILLING PRECISION

Milwaukee’s THUNDERBOLT design addresses the primary failure point in jobsite drilling: bit breakage under side-load stress. This 21-piece set represents a high-yield investment for fleet managers and solo contractors alike, engineered with a tapered web that adds significant mass to the core where standard bits typically fail. By reinforcing the backbone of the bit, Milwaukee has effectively extended the service life of these consumables, ensuring that high-torque drilling into wood, plastics, and metals remains consistent across every application.

• / THUNDERBOLT Web Geometry: Thicker core design provides maximum strength against side-load breakage during heavy-duty use.
• / Black Oxide Treatment: Protective coating reduces heat friction and provides superior corrosion resistance in diverse environments.
• / 135-Degree Split Point: Engineered for precision starts, preventing the bit from walking on smooth surfaces and ensuring faster hole production.
• / Parabolic Flute Design: Optimized flute shape rapidly clears chips and debris to maintain lower operating temperatures.
• / PACKOUT Compatible Storage: Supplied in a customizable accessory case that locks directly into the Milwaukee PACKOUT ecosystem.

WHAT'S IN THE BOX

(1) 21-Piece THUNDERBOLT Black Oxide Drill Bit Set, (1) Customizable Accessory Case.