General description The BlueSpot HSS Step Drill is manufactured from high-speed steel, providing increased durability and cutting power. It features 14 steps with size increments of 2mm (4-6mm) and 3mm (9-42mm). The drill is titanium coated to reduce friction and heat, making it ideal for precision drilling in various materials including aluminium, brass, copper, plastic, steel, and wood. Technical specifications Number of steps: 14 Size range: 4mm to 42mm Step increments: 2mm Material: High-speed steel Coating: Titanium Installation Insert the drill into a compatible drill chuck and tighten securely before use. Usage Use for precise, step-by-step drilling in various materials. Apply steady pressure and avoid overheating.