10-Pack 8mm Cobalt HSS Drill Bits – Heavy-Duty M35 Steel for Stainless Steel & Hard Metals

When standard drill bits fail, it’s time to upgrade to a tool engineered for serious performance. This 10-pack of 8mm Cobalt HSS Drill Bits is your ultimate solution for drilling through the toughest, most abrasive materials without compromise. Say goodbye to dull, overheated bits and hello to clean, precise holes, project after project.

Crafted from premium M35 High-Speed Steel (HSS) infused with 5% cobalt, these bits are built for extreme durability and superior heat resistance. The cobalt alloy doesn’t just coat the surface; it’s integrated into the steel’s core, meaning the bit maintains its hardness and sharp cutting edge even at the high temperatures generated when drilling through stainless steel, cast iron, titanium, and other hardened alloys. This unique composition ensures a significantly longer service life compared to standard HSS bits, saving you time, money, and frustration.

Each bit features a precision-ground 135-degree split-point tip, a critical design element that prevents “walking” and ensures the bit engages the material on first contact. This eliminates the need for a center punch and allows you to start drilling exactly where you intend, guaranteeing accuracy and a clean entry every time. The bit’s spiral flute design efficiently clears away chips and debris, reducing friction and heat buildup for smoother, faster drilling performance.

This convenient pack provides exceptional value for any professional workshop or serious DIY enthusiast. You get ten identical bits, ensuring you always have a sharp, reliable tool ready for the next task. The technical specifications are tailored for versatility and effectiveness:

• Diameter: 8mm
• Total Length: 133mm
• Usable Flute Length: 87mm

The set arrives neatly organized in a durable, compact plastic case. This protective packaging keeps your bits secure, prevents them from getting lost in your toolbox, and makes them easy to transport to any job site. Whether you are fabricating, performing automotive repairs, or tackling demanding metalworking projects, these cobalt drill bits deliver the power and precision you need to get the job done right.