- Wear-resistant and durable drill bits designed for long-lasting performance. - Compatible with hand drills (minimum 550W). For thicknesses of 1-2mm and hole diameters greater than 14mm, a bench drill is required. Ideal for stainless steel workpieces with hardness below 25 degrees. - Incorporate water during drilling to cool the bits, significantly extending their lifespan. Recommended operating speed is between 250-400 RPM. - Constructed from HSS 4241 steel with a cobalt coating, these large step taper drill bits are designed to minimize friction and maintain cooler operation. This 6-piece set effectively replaces 50 individual drill bits, saving you time and storage space. - The two-flute design enables faster, smoother cutting, while the large bit features a 3-sided shank and the smaller bits have a hex shank to prevent slipping in the drill chuck. - The cobalt steel with titanium coating provides exceptional durability, ensuring the bits remain sharp for years to come. Applications: 1. Perfect for professional metalworking and fabrication, allowing for precise drilling in stainless steel. 2. Ideal for DIY enthusiasts tackling home improvement projects, offering versatility and ease of use. 3. Suitable for automotive repairs, enabling quick and efficient drilling through tough materials.