General description Faithfull Cobalt Quick-Change Impact Drill Bits feature a revolutionary tip design that is superior to any other drill bit in the industry. These innovative drill bits have 7 cutting edges and 3 peaks, providing several distinct advantages such as super-accurate self-centering, speed, and extended tool lifetime. They are designed for heavy-duty industrial work across a variety of materials. Technical specifications Material: M35 HSSE grade steel with 5% cobalt content Sizes included: 2mm, 3mm, 4mm, 5mm, 6mm Shank type: 1/4in quick-change shank Manufactured according to: DIN 338 and DIN 3126-E6.3 Usage Ideal for drilling 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. Other information Impact rated for use in impact drivers Offers up to 10 times longer life in mild steel Protruding centre tip acts like a pilot drill for accurate