• Cobalt drill bits with HSS M35 steel and 5% cobalt. • Rainbow finish that provides additional resistance. • High durability with low loss of sharpness and wear. • Heads with two machined edges at 135º for better grip. • Ground tips with amber color finish. • Manufactured under DIN338 standard. • Use of cutting fluids or cooling oils recommended. • High hardness and stable performance. • Helical drill bit for drilling hard metals like stainless steel and cast iron. • 135-degree split point for fast drilling. • Self-centering and penetrate with less pressure. • Operate at appropriate RPM for maximum efficiency and cool for better performance.