Professional Solid Carbide Screw Drill Set designed for precise, high-performance drilling in demanding applications. This 5-piece set includes SD2, SD3, SD4, SD5 and SD6 drills, covering a range of common sizes for workshop, industrial and engineering use. Made from premium solid carbide for excellent wear resistance, long tool life and consistent accuracy. Ideal for creating clean, accurate pilot holes for threaded connections with a minimum tap size of M3. Features a 2 mm drill diameter (SD2 type) and compatible sizes for a variety of metric screw threads. Suitable for CNC machining, manual drilling, and precision fabrication where rigidity and dimensional stability are essential. Perfect for professionals and serious hobbyists seeking reliable, repeatable drilling performance in metals and other hard materials.