This Cobalt-Coated Twist Drill Bit Set for Precision
Experience professional-grade drilling with this set of four cobalt-coated twist drill bits, designed specifically for heavy-duty tasks. Crafted from high-quality stainless steel, these bits combine durability and corrosion resistance, making them an excellent choice for both indoor and outdoor projects. The dark cobalt coating not only gives the bits a sleek, industrial look but also significantly improves heat resistance, allowing for efficient drilling into tough materials like stainless steel and hardened metals. Whether you're working with a drill press or a handheld drill, this versatile set ensures you achieve precise, clean holes every time. Feel confident in your work, knowing you have reliable tools that outperform standard drill bits in demanding applications.
Keys features of the product set
- This set includes four cobalt-coated twist drill bits in sizes of 3mm, 4mm, 5mm, and 6mm, ideal for a range of precision drilling tasks and various material thicknesses.
- Made from high-quality stainless steel, these drill bits are resistant to rust and corrosion, ensuring longevity and dependable performance for your projects.
- The cobalt coating enhances heat resistance, enabling effective drilling into stainless steel, high-tensile steels, and other tough materials without overheating or wearing down.
- Designed with a twist drill configuration for accurate, clean holes; suitable for use in drill presses, radial drills, bench drills, or hand drills with compatible chucks.
- The cylindrical shank is smooth and polished, providing a secure fit in all standard drill chucks, ensuring stability during heavy-duty drilling operations.
- Technical specifications include sizes of 3mm, 4mm, 5mm, and 6mm; total length approximately 75mm; cobalt coating provides superior heat and wear resistance for demanding tasks.
This drill bit set is your go-to for precise, durable drilling—order now and enhance your workshop tools!
Ensure your toolkit is equipped with these premium drill bits guaranteeing reliable performance, smooth operation, and exceptional results even in the toughest materials. Investing in this set allows you to confidently carry out metalworking, woodworking, or DIY projects with professional precision and resilience.

















