Buko Cobalt Drill Bit (HSS-Co) 4.0mm - Various Sizes

• Buko Cobalt Drill Bits (HSS-Co) are engineered for drilling hard, abrasive, and high-tensile metals. • Made from M35 grade high-speed steel alloy with approximately 5% cobalt for superior heat and wear resistance. • Ideal for applications where standard drill bits would quickly dull or fail. • Withstand immense friction and extreme temperatures during operation. • Available in various sizes, including 4.0mm. • Brand new condition, suitable for professional and industrial use.