HSS COBALT BULK DIN 338 RN, 4.2
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//HSS COBALT JOBBER DRILLS BITS Size: ø 4.2 x 75/43 mm Bulk: Qty 1 Range of application: 5% cobalt-alloyed jobber drills with high heat-resistance for drilling steels with tensile strength over 800 N/mm², specially suitable for high alloyed steels, bearing-steels, hot/cold-rolled steel. Ideal for stainless steel. Strengths Self-centering, due to a special point shaoe Drilling even with the highest thermal stress up to 600° Fast, due to special drill grinding fast drilling progress and up to 50% less feed pressure required Tensile strength over 800 N/mm² Specially suitable for high alloyed steels, bearing-steels, hot/cold-rolled steel. Ideal for stainless steel High heat-resistance Highly accurate centering Alpen drill bits are manufactured in Austria.