COBALT DRILL BIT 3.5MM BULK
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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. 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