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3,5 mm Ø Cobalt jobber drill bits in BULK

For industrial application. 10 pieces in a handy plastic slip-open container.

Cobalt jobber drill bits in BULK Range of application:

5% cobalt-alloyed jobber drills with high heat-resistance for drilling steels with tensile strength over 800 N/mm², especially suitable for high alloyed steels, bearing-steels, hot/cold-rolled steel. Ideal for stainless steel.

For drilling into:
  • Structural steels < 400 N/mm²
  • Free cutting steels < 850 N/mm²
  • Unalloyed heat treatable steels < 1.100 N/mm²
  • Alloyed heat treatable steels < 1.300 N/mm²
  • Copper, brass, aluminium
  • Stainless steels
  • Grey cast iron, malleable cast iron
  • Plastics