21/64 X 4-5/8-inch Cobalt High-speed Drill Bit

The Master Mechanic 21/64" x 4-5/8" Cobalt High-Speed Drill Bit is engineered for precision and durability, making it an essential tool for both professional and DIY enthusiasts. This drill bit features a robust high-speed steel construction with an 8% cobalt content, ensuring exceptional heat resistance and cutting efficiency even at temperatures exceeding 1000° F. The innovative 135 split point design, combined with four cutting edges, allows for quick penetration and minimizes walking, making it ideal for drilling through tough materials.

Whether you are working with heat-treated steel, stainless steel, chrome, manganese steel, titanium, or armor plate, this drill bit is designed to handle the toughest jobs with ease. Its versatility and strength make it a must-have addition to your tool collection.

Key Features:

• High Speed Steel with Cobalt for enhanced durability
• 135 Split Point Design for quick penetration and reduced walking
• Four Cutting Edges for efficient drilling
• Recommended for use on hard metals including heat-treated steel and titanium

Use Cases:
This drill bit is perfect for professionals in construction, metalworking, and automotive industries, as well as for home improvement projects. Whether you are drilling into metal for fabrication, repairs, or installations, the Master Mechanic Cobalt Drill Bit will deliver reliable performance and precision every time.