Cobalt Letter Size Jobber Drill Bits

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  • Ground Flute.
  • Gold Finish.
  • M42 Cobalt Material.
  • These bits are more heat resistant than high-speed steel to maintain their sharp edges longer when drilling hard materials. Jobbers' length are the most common bits and have the rigidity and length required for most applications. The split point keeps the bit centered without a pilot hole.
 



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