This Izar Spanish cobalt 5% metal drill bit, model R1016, measures 9.4 mm and is designed for drilling in extremely hard metals such as iron, steel, and stainless steel. It utilizes a 5% cobalt content, which provides high resistance to heat generated by friction during drilling, reducing wear and extending the tool's lifespan. It offers professional performance with high penetration accuracy and excellent stability during heavy-duty use in workshops and factories.