Shop Cobalt Drill Bits at Alltools Geelong — heavy-duty HSS-Co5% jobber drills with 5% cobalt alloyed through the steel for drilling stainless, hardened alloys and cast iron where plain HSS burns out. Our range spans Harlingen and Sutton sizes from 1mm to 13mm, in single bits and trade multipacks. Related: Jobber Drill Bits and Metric Drill Bits.
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