General description This high-speed steel step drill bit is designed for drilling holes of various sizes in materials up to 4 mm thick. It allows for precise, incremental drilling without the need to change bits, making it ideal for tasks requiring multiple hole sizes. Technical specifications Size range: 6 to 30 mm Increment steps: 2 mm Maximum material thickness: 4 mm Material: High-Speed Steel (HSS) Shank diameter: 10 mm Compatibility and accessories Compatible with standard drill chucks Suitable for use with various power drills and drill presses Installation Insert the shank into the drill chuck and tighten securely Ensure the drill is set to appropriate speed for metal drilling Usage Mark the desired hole position on the material Secure the material to prevent movement during drilling Start drilling at a low speed, gradually increasing as needed Use cutting fluid if necessary to prolong tool life and improve cut quality Other information