21/64 In Cobalt Drill Bit – Industrial-grade, 135° Split-point For Hard Metals

Presenting Do it Best 21/64 In. Cobalt Drill Bit, a rugged tool designed to deliver lasting performance in demanding metals. Crafted from industrial-grade cobalt, it resists heat and wear when drilling through stainless steel and titanium. The precision-ground geometry and 135-degree split-point start cutting instantly, reducing drift and ensuring true holes from the first turn. This bit combines reliability with a compact 4-5/8 inch length for versatile metalworking tasks.

How It Helps You: This cobalt drill bit delivers extended tool life and consistent results across heavy-duty projects, whether you're fabricating frames, performing automotive repairs, or tackling metalworking tasks. The combination of a hard-wearing cobalt alloy and a sharp split point minimizes chatter and yields accurate holes with less effort.

• 21/64 in diameter provides precise hole sizing for metalworking, paired with a cobalt alloy for superior durability and extended life.
• Material: Cobalt. Industrial-grade cobalt alloy delivers exceptional heat resistance for drilling through stainless steel, titanium, and other hard metals.
• Length: 4-5/8 in offers reach for deep holes without swapping bits, enhancing efficiency in fabrication and automotive tasks.
• Shank Diameter: 21/64 in; sold as an individual piece for flexible procurement and replacement in any project.
• Tip Design & Depth: 135° split point ensures immediate penetration and minimizes walking; capable of drilling up to 3-5/16 in depth for deep-metal work.

Why this cobalt drill bit stands out: Designed for high-demand metalwork, it delivers exceptional durability and precise holes in the toughest materials. The cobalt composition resists heat better than standard bits, while the 135° split-point minimizes wandering during start-up for accurate holes. Ideal for fabricators and DIY enthusiasts alike, it keeps your workflow efficient and your results consistent, even on stainless steel and titanium.