Faithfull Cobalt Jobber Drill Bit – FAIPP420COB

This 4.2mm Faithfull Professional Cobalt Jobber Drill Bit is supplied in a convenient pack of 2, offering a specialist size for specific engineering and fabrication applications. The 4.2mm diameter is commonly specified for metric clearance holes and pilot drilling operations where precision is paramount in hard materials. Crafted from M35 HSSE grade steel with 5% cobalt content, this drill bit provides outstanding heat resistance and extended tool life. The cobalt additive enables the bit to withstand the high temperatures generated when drilling stainless steels, hardened alloys and other challenging materials, maintaining its cutting efficiency throughout demanding operations. With its fully ground construction and precision 135° non-slip split point, this bit delivers accurate centring and reduces walking on hard surfaces. Manufactured in accordance to DIN 388 standards, it guarantees high precision tolerances and geometric accuracy. Perfect for heavy-duty industrial work in alloy steels, carbon steels, cast iron, hardened alloy steels, stainless steels, high temperature alloys, titanium alloy, high strength steel and carbon fibre composite materials. Features and Benefits: • 4.2mm diameter supplied as pack of 2 • 5% cobalt for superior heat resistance • Fully ground precision finish • 135° split point prevents drill walking • DIN 388 compliant quality assurance Specifications: Tip Diameter (mm): 4.2 Overall Length (mm): 75 Pack Qty.: 2 Diameter: 4.2mm. Working Length: Pack Size: 2.