Metal drill made of solid, extremely heat-resistant cobalt-alloyed steel (5% cobalt) ground according to DIN 338. Surface polished. Suitable for drilling in high-alloy steel and metal with a tensile strength of 1000 N/mm such as acid and heat-resistant steels and Stainless steel. QUAD EDGE drill bit: unique combination of 135 cross-grinding and 4 cutting edges: 135 cross-grinding for easier centering, no punching required. 4 cutting edges produce smaller chips for less heat development and longer tool life. Variable spiral geometry for faster chip removal and lower Heat development. Reinforced drill core: The innovative core is conical and becomes stronger towards the shaft. Strengthens the drill and increases the service life of the spiral

diameter 1.5
working length 18
total length 40
Contents 10