19/64 X 4-3/8 In. Cobalt High-speed Drill Bit

Discover 19/64" x 4-3/8" Cobalt High‑Speed Drill Bit, a rugged tool engineered for rapid, accurate drilling in the toughest alloys. Crafted from premium high‑speed steel infused with 8% cobalt, this bit maintains sharpness even when temperatures soar above 1000°F, ensuring clean holes without wobble. Its compact shank and aggressive geometry make it a perfect fit for professional mechanics and serious DIYers alike.

Benefits: The cobalt blend delivers superior heat resistance, so you can work longer without losing edge performance. The split‑point tip initiates drilling with minimal thrust, reducing the chance of walk‑off and delivering smoother entry into hardened surfaces. Enjoy faster cycle times and lower torque demands, which translates into less wear on your drill and quicker project completion.

• 8% Cobalt Alloy: Enhances thermal stability and prolongs tool life in high‑temperature applications.
• 135° Split Point Design: Provides instant bite and eliminates walking for precise hole placement.
• Four Cutting Edges: Maximizes material removal speed while maintaining a clean, burr‑free finish.
• High‑Speed Steel Core: Combines toughness with flexibility, resisting breakage in demanding jobs.
• Optimized for Hard Metals: Ideal for heat‑treated steel, stainless steel, chrome, manganese, titanium, and armor plate.

Why Choose This Drill Bit: Engineered for professionals who demand reliability, this cobalt‑enhanced bit offers unmatched durability and cutting efficiency in the most abrasive environments. Its balanced design reduces heat buildup, allowing you to drill deeper with confidence. Whether you’re fabricating aerospace components, repairing heavy‑duty equipment, or tackling high‑performance automotive projects, this drill bit delivers the precision and power you need to get the job done right the first time.