- PREMIUM COBALT DRILL BIT SET: This 25-piece cobalt drill bit set is crafted from high-speed steel (HSS), providing exceptional durability for demanding drilling tasks. The cobalt composition enhances hardness and heat resistance, making these bits ideal for drilling through hardened steel, stainless steel, and other tough materials. - EFFICIENT DRILLING DESIGN: Each bit features a 118-degree split point angle for precise and effortless drilling. The short chisel edge minimizes resistance, ensuring smooth and efficient operation. Each bit is designed for consistent and reliable performance across various applications. - SECURE STORAGE SOLUTION: The drill bits are housed in a robust metal storage case that keeps tools organized and easily accessible. The indexed design ensures each bit stays in place, eliminating the hassle of searching for misplaced tools. - VERSATILE SIZING OPTIONS: This set includes drill bits ranging from 1mm to 13mm, providing a comprehensive selection to suit all your drilling needs. Whether you're tackling DIY home improvements, woodworking projects, or professional tasks, this set has the right size for you. - PRACTICAL USE SCENARIOS: - Perfect for metalworking projects where precision and durability are essential. - Ideal for automotive repairs requiring drilling through tough materials. - Excellent for home renovations, allowing for seamless installation of fixtures and fittings. Choose this cobalt drill bit set for superior performance, durability, and convenience in all your drilling endeavors.