General description The HSS Step Drill Bit is designed for versatility, allowing you to create holes of various sizes ranging from 6mm to 60mm with its 12-step design. Made from high-speed steel (HSS 4241), this drill bit is suitable for drilling into materials such as steel, brass, wood, plastic, and more, making it an essential tool for DIY enthusiasts and professionals alike. Technical specifications Size: 6-60mm (12 steps: 6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm) Shank diameter: 13mm Material: HSS 4241 Recommended drill speed: 250-400 RPM Maximum workpiece thickness: 5mm Hardness suitability: Less than 25 Usage To ensure optimal performance and longevity of the drill bit, it is recommended to use water cooling during drilling. The unique step design allows for easy drilling of multiple hole sizes without the need for changing bits. Other information