Milwaukee 25/64″ THUNDERBOLT Titanium Drill Bit

ENGINEERED FOR MAXIMUM CORE STRENGTH AND THERMAL RESISTANCE

The Milwaukee Thunderbolt Titanium Coated Drill Bit is designed to eliminate the most common failure point in high-torque drilling: core breakage. By utilizing the proprietary Thunderbolt weba significantly thicker core than standard HSS bitsthis bit provides the structural rigidity required to withstand side-load pressures and binding in heavy-gauge metals. The titanium nitride coating acts as a critical thermal barrier, dissipating heat to maintain edge sharpness and extending the tool’s service life up to 3X over black oxide alternatives. For precision starts, the 135 split point bites into the material on contact, preventing the bit from walking across finished surfaces or curved stock, while the 3-flat Secure-Grip shank ensures that all the torque from your M18 FUEL drill is transferred directly to the workpiece without slipping in the chuck.

• / Thunderbolt Web: Thicker core design provides ultimate strength and protects against breakage during aggressive side-loading.
• / Titanium Nitride Coating: Reduces friction and heat build-up to keep the cutting edge sharp for up to 3X longer life.
• / 135 Split Point: Delivers a precision start and prevents bit walking for immediate penetration in metal, wood, and PVC.
• / Parabolic Flute: Optimized geometry clears chips and debris rapidly to prevent clogging and overheating in deep-hole applications.
• / Secure-Grip Shank: 3-flat design provides a non-slip connection in the drill chuck, maximizing power transfer and safety.

TECHNICAL SPECIFICATIONS

WHAT’S IN THE BOX

(1) 25/64″ Thunderbolt Titanium Coated Drill Bit (48-89-2222)